Argenta

The Argenta are a warrior race native to Argent D'Nur, the first sapient descended from the Wraithcall of the Elemental Wraiths and the founders of the Night Sentinels.

Biology
Argenta are known to be nearly identical to Humans, at least outwardly, with the only visible distinctions being narrow facial features and somewhat angled eye placement. Their skin colors resemble Humans, known to vary between fair and somewhat darker shades. While most differences in physiology from Humans are unknown, they are known to have Human-like hearts and red blood. Argenta are mortal, visibly aging throughout an unspecified lifespan, but the use of Argent Energy is able to make them immortal. However, the three Deag Priests, takers of Argent Energy, gained visibly demonic appearances, becoming sickly thin, with grey skin, red eyes, and sharp, rotting teeth. It is unknown if these physiological alterations happened to all Argenta who took Argent Energy, or if it was caused by the priests' constant exposure to Hell. They have been described as able to use magic, granted to them by the Wraiths as possibly direct infusions of Sentinel Energy, although the full extent of these abilities are unknown. Deag Grav was seen teleporting with his staff and summoning the Gladiator, but it is very likely that his abilities at that time were the result of demonic magic, not Sentinel Energy. Notably, some Argenta have been able to manifest long after death as incorporeal spirits, keeping their sapience and memories. King Novik, manifesting eons after his death, appeared as a blue spirit, as do several fallen Sentinels, but the Sentinel souls trapped in Hell manifested as green spirits. The reason for this discrepancy is unknown, but it may be due to the Sentinels in Hell being cursed to forever linger without rest, while the others possibly manifest through their own magic. Like other mortals, Argenta souls can be harvested for conversion into Hell Essence, an essential step in producing Argent Energy, and their discarded bodies can be converted to demons.

Culture and society
Argenta, since their early days, have been a society of warriors, best exemplified through the Night Sentinels. The Order of the Night Sentinels are the highest and most honored warrior caste, the head of the greater Argenta military, formed to protect both the Argenta and the Elemental Wraiths. Night Sentinels swear lifelong loyalty to both the king and the Wraiths, continuing to guard the dormant Wraiths even after Maykr contact. The Night Sentinels were considered an exclusive order, denoted by their distinctive armor, with no one outside the high warrior castes allowed to join their ranks. Sentinel recruits appear to be chosen by officials designated as Signifiers, who are presumably tasked with observing and assessing a warrior's potential. The only exception ever made to this rule was the acceptance of the Doom Slayer, who needed a special commission from the Signifiers and direct permission from the king to join, although he initially faced criticism and condescending attitudes from the other Sentinels. The Night Sentinels have a codified and highly disciplined structure, with focus on both combat prowess and codes of brotherhood. By Sentinel codes, a Sentinel who spills the blood of any member of the clergy class, no matter their transgressions, would be excommunicated. However, this code appears to have been dissolved or disregarded by the Night Sentinels who joined the Doom Slayer. The Night Sentinels appeared to also hold an organization of inquisitors, possibly formed during the worship of the Maykrs, who were tasked to track down suspects among the warrior caste, reporting directly to the king. While a powerful force, the Night Sentinels appear to have not made up the entire Argenta military, only being its most elite force who spearheaded assaults, defended Argent D'Nur itself, and served functions as royal guards, although they took more prominence during the war with Hell. Below them are the lower infantry force, divisions of armored vehicles, aerial crafts, spacecraft, and an unknown force that utilizes distinctly different armor, known to guard the Torch of Kings. Night Sentinel apprentices, clad in notably different armor better resembling that of the lower infantry, are known to accompany full-fledged Sentinels into battle. The Sentinels domesticated, and possibly created, a lupine species known as Sentinel Wolves, who are assigned as battle beasts to Night Sentinels. The origin of these beasts is a closely guarded secret, known only to the Sentinels. In addition, the Sentinels also domesticated Wintherins, also using them as beasts of war, with at least one Wintherin being branded with the Doom Slayer's sigil, which became the standard insignia of the Night Sentinels during the war against the demons.

The Night Sentinels are dedicated to guarding the peace and prosperity of their people, but by their codes, do not attempt to change the views of the public, even if they disagree with what the people are doing, such as taking Argent Energy, although this code was broken by the Sentinels loyal to the Slayer during the rebellion against the Maykrs. While almost all Night Sentinels wore the same model of armor, save the Doom Slayer, certain commanding officers, and the Torch guards, they have used a variety of different weapons throughout their order, from energy-based firearms to melee weapons. Swords and shotguns appear most common throughout their ranks, although commanders such as Valen appeared to have utilized unique armor and weapons, such as Sentinel Energy hammers and shoulder-mounted grenade launchers. Sentinel guards in Sentinel Prime were assigned energy spears, and Sentinel marksmen assigned to guard city walls were equipped with Ballistae. Most Sentinel ranks are unknown and unnamed, save for general (possibly interchangeable with commander), but the rank of "Banner Sergeant" is known to be one of them, and presumably a very high rank, as the only known bearer of this rank also held the title of lord. Sentinels assigned ballistae also carried the title of "archers" for an unknown reason. No recognizable denotations of rank are visible on Night Sentinel armor, which were known to bear the Doom Slayer's sigil on their left breast, while apprentices and other members with different armor carried the sigil on their belts. Crimes are considered a dishonor to Argenta, but instead of being jailed, criminals are sent to the holy arena of Sentinel Prime to fight for their freedom and honor. Members of other species who arrive on Argent D'Nur, such as Humans, are also sent to battle in the arena, being granted asylum among the Argenta if they survive. Criminals and refugees who make it out of the arena are immediately assigned to the lower ranks of the Argenta military, where they are granted no titles and no individual ranks. This force, functioning as general infantry, was known to be present at the front lines of the Argenta army, where many were often killed, but in dying for the Argenta army, they are believed to have died with honor, their only true reward. No member of this force, with the exception of the Doom Slayer, was eligible to enter the ranks of the Night Sentinels. The equipment used by this force appears to consist of green armor and either conventional firearms or Sentinel Energy-based melee weapons. As seen in Immora, their armor appears to have some variations, but this may have been due to the lack of resources the Wraith loyalist tribes had.

The Argenta are ruled in a patriarchal monarchy, with the king being chosen from the ranks of the Night Sentinels, as the Argenta believe that only a warrior is fit to rule them, the result of a history defined by war. In times of war, the king is expected to lead from the battlefield rather than from the throne, and by Argenta law, a king who is deemed unfit for battle is unfit to rule. The Crucible, a powerful and incredibly revered weapon, was said to only activate in the hands of a true Sentinel warrior king, with only the Doom Slayer ever wielding one, which presumably made him heir to the throne. Due to their role as both a warrior and a monarch, Argenta kings were known to wear battle armor at all times, forsaking ornate crowns or robes, and at least one king, King Novik, was known to not wear a proper shirt. The rank of king was dissolved when Argent D'Nur fell, with the Night Sentinels presumably being reassigned to the Hell Priests and Maykr Angels, although it is extremely likely that the monarchy was re-established after the battle of Immora. The original home of the royal family, and a center of prosperity for the Argenta civilization, was Taras Nabad. After the city was severely damaged by a Titan, the king's residence was moved to Sentinel Prime, and then presumably to Exultia, which may have been a sort of backup palace. While Exultia bore its own throne and elaborate throne room, Taras Nabad had an even grander throne room, with a throne made from the skull of an unknown behemoth, possibly an Argenta Ancestral or some sort of demon.

Prior to Maykr contact, Argenta religion was centered around the Elemental Wraiths, who were both worshipped for their gifts and feared for their wrath and Wraithcall. The Order of the Deag was formed to serve as the priests of the Wraiths, offering tributes to the Wraiths to avoid their wrath and forming the basis of the deeply-rooted religious beliefs of the Argenta. Like Night Sentinels, Deag Priests were greatly honored, serving as advisors to the king, and dressed in ornate robes with varying headgear and staffs matching their headgear. Any reason for their varying clothing and headgear, which could consist of a headband, crown-like helmet, or helmet with several presumably robotic optics, is unknown. They also appear to have been trained in the use of magic. Lower ranks of priests were known to exist, as were individual tribal priests, known as shamans, who were known to exist at some point in time prior to the fall of Argent D'Nur. The World Spear, the ship that brought the Wraiths to Argent D'Nur, is a very sacred site, especially to priests. When the need was desperate, Argenta shamans who sought passage to the World Spear for the powerful crystals held within would light the Torch of Kings, a beacon that would tell all who could see it that they sought passage. They would then make the treacherous journey alone, and would be judged by the Guardians before the gates of the World Spear. After the Maykrs made contact, the Argenta religion shifted its worship to the Maykrs, although most of its structure does not appear to have changed. As the Maykrs provided the Argenta with far more prosperity than the Wraiths did, most were easily swayed, and the Night Sentinels were known to quickly silence any form of dissent, even as it became more clear that the Maykrs had betrayed Argent D'Nur. Despite their devoutness, when the deal between the Maykrs and Hell was discovered, Night Sentinels loyal to the Doom Slayer shifted their worship back to the Wraiths and attempted to overthrow the Maykrs, even being supported by King Novik and any Argenta who would listen to them, as most Argenta were made loyal to the Maykrs. However, some Night Sentinels remained loyal to the Maykrs despite their clear malevolent intentions, starting a destructive civil war. For reasons unknown, these Night Sentinels, later known as Marauders, donned Praetor-like armor, albeit with distinct helmets.

The general aesthetic of Argenta clothing, architecture, and technology holds great similarities to many societies across medieval Europe and Earth's early modern history, with elements resembling those of Celtic, Gaelic, Norse, and Anglo-Saxon design. Argenta architecture in large cities was known to be grand, with towering, ornate buildings appearing to be made of stone, lined with statues and other images of the king, Wraiths, and Night Sentinels, with images of Wraiths also present aboard Sentinel warships in various forms, such as raised designs on the doors to different rooms. An unknown creature was depicted in several statues across Argent D'Nur, appearing to be a demonic humanoid with wings and four arms, with an unknown significance. Due to its demonic appearance, it is likely that this figure was added after Argent D'Nur fell, likely at the orders of the Hell Priests. Notably, Argenta society is highly traditionalist, with many forms of technologies, especially weaponry, still bearing a medieval aesthetic, such as axes, swords, shields, and medieval-styled plate armor, despite being upgraded into technologically advanced forms utilizing Sentinel or Argent Energy. Their language, often written with ink on paper, utilizes many rune-like symbols and other more ornate symbols, which are possibly signatures or other forms of branding. Earth-like symbols to denote holiness have been seen in Argenta works, such as halos, present around the Doom Slayer's head in certain images. After the arrival of the Maykrs, the Argenta became a civilization of expansion, seeking to spread the "enlightenment" of the Maykrs across all worlds, where they liberated alien species from oppressors and forged great alliances, imprinting faith in the Maykrs to all they liberated or allied with. Aside from the king and his family, other nobles are known to exist, presumably exclusively made up of Night Sentinels, with titles such as lord, although their exact status and power is unknown. While their monarchy and military appears patriarchal, both male and female Argenta have been described as becoming either soldiers or alchemists. However, female Argenta are rarely seen in Argenta historical texts, and their armies, at least the members seen by Humans, have been entirely male. It is ultimately left unknown what the treatment of females in Argenta society is, but it appears they at least have equal opportunities when it comes to roles in the military or pursuing magic, which are both said to appease the Wraiths. In both times of war and peace, the Argenta remain vigilant for threats, never disbanding their armies and always continuing their development of weaponry.

During the war against the demons, usage of Argent Energy made the majority of the Argenta population completely subservient to the Maykrs. It is unknown what became of their society after Argent D'Nur fell, but it is known that Argent D'Nur fell into ruin as competing factions of the so-called "Golden Age" of Argent usage turned on each other, corrupting many sacred traditions. The corrupted Deag Priests, now known as Hell Priests, took control of the world, aided by at least one Maykr Angel, and remaining loyalists to the Wraiths and the Doom Slayer fled the major cities. The holy arena was converted into a site for blood sport, used as essentially an execution ground. Those who displeased the priests would be sent to the arena to battle the Gladiator, a Hell Knight-like demon which could easily overpower an Argenta. Usage of the Torch of Kings was banned during the rule of the Hell Priests, and its lighting signified to remaining free tribes that their oppressors had fallen. Despite the Maykrs and Hell Priests commanding the Argenta, Night Sentinels still present in Sentinel Prime, presumably Maykr loyalists, were known to still hold the Doom Slayer in an honored position, chanting his name, standing at attention for him, and even using Sentinel Energy-powered spears. However, other Night Sentinels were quick to turn on the Slayer after he killed Deag Grav, and used Argent Energy-powered spears. The unknown Sentinel organization guarding the Torch of Kings also used Sentinel Energy, allowed the Doom Slayer to light the beacon, and were present in the final battle of Immora.

Technology
Argenta technology is highly advanced, the result of Sentinel Energy usage, Maykr collaboration, and Argent Energy usage, along with constant work to keep upgrading, with the most emphasis put on their war assets. Almost all Argenta technology is powered by either Sentinel Energy or Argent Energy. The distinctive white Night Sentinel armor, resembling 15th Century Gothic plate armor with Great Helm-like helmets, were among the most advanced Argenta models of individual soldier armor. While mostly built in a traditional medieval style, they had several visibly advanced elements denoted by glowing blue elements, including their visor, possibly indicating a sort of HUD, like that of the Doom Slayer's helmet. They appeared to be fully sealed, with the solid components colored white, while the flexible suit beneath them was colored black, and bore a communicator on their left wrists. Most of the capabilities of this armor is unknown, but they presumably provided a great defense against the raw strength of demons, and against other dangers as well, while also being very mobile. A second model of Night Sentinel armor, utilized by the guards of the Torch of Kings, had even more metal coverings, notably bulkier than that of the standard Night Sentinels, especially in the upper torso and shoulders, suggesting greater durability at the cost of mobility. These suits also bear a distinctly different helmet, with three ports on its top and a somewhat protruding faceguard branded with an unidentified winged insignia. Their helmets appear to have several slit-like eye holes, possibly camera optics, and the overall design of the suit appears more visibly tech-heavy than the standard model. Like the standard model, the exact capabilities of this model are unknown, but it remains likely that they provide a strong defense against demons.

The armor utilized by the Argenta infantry is known to often consist of full body armor, colored green with a brown undersuit as opposed to the white and black of the Night Sentinels. They do not appear airtight and have less visible technological aspects, with the only visibly advanced aspect being a single red component on their left breast. The armor bears more visible segments than standard Sentinel armor, often silver and distinctive. Their rounded helmets, bearing some Anglo-Saxon and Nordic elements, have silver linings around their eye slits running down their mouth guard, two small curving horns on their sides, protruding from silver-armored patches, and two small spikes. This armor is known to bear many similarities to that of Sentinel apprentices, although with more coverings. Sentinel apprentice armor, while bearing the same helmets and lower armor as infantrymen, does not fully cover the torso of the wearer, for an unknown reason, only bearing armor over the left breast of the wearer, extending to armor the part of their back on the opposite side and connected to their right shoulder by straps. An alternate design of the helmets are known to have a grate-like visor and a few ridges on its top, lacking horns and spikes. The arms of apprentice armor usually have the primary arm only equipped with a light shoulder pad and vambrace, while the other arm, usually the left arm, has heavier armor. Unique models of Sentinel armor, such as the one worn by Commander Valen, resembled the armor of the Doom Slayer, which was known as the Praetor Suit. These models bore leg armoring resembling apprentice/infantry gear, a rigid upper torso with an orange left shoulder joint, and some segmented plating in their torso's midsection and sides, including a spine-like segmented section on their backs, presumably to allow a fair range of movement. Like the Praetor suit, this armor model could be modified with shoulder-mounted armaments. The model used by Valen had a heavily armored, possibly cybernetic left arm, but only had a vambrace for his right arm, and lacked a helmet. During the Argenta civil war, Maykr loyalist Sentinels were known to wear Praetor-like armor with helmets that bore large, clear visors and a segmented mouth guard. When they were resurrected as Marauders, they wore standard apprentice gear once more, but with only a mouth guard in place of a helmet. Infantry, apprentice, and Praetor-like armor are all known to bear a very similar, red, circular technological component on their left breast, oddly not mirrored in the armor of Torch guards or Night Sentinels. Only one function of this device is known: it can be used to wirelessly activate certain technologies, glowing blue when it does so, although the only time it was seen in use was on the Slayer's Praetor Suit, with no visible interface used. If this is reflective of the device on other Argenta armor models, then it is possible that the device is actually cybernetic, supported by Marauder gear having that component visibly fused to them, or somehow linked to the user's mind. It is also possible that the other models of Night Sentinel armor do have a device like this equipped, simply not visible, possibly on their wrists like their communicators. Any other technological functions of Argenta apprentice, infantry, or Praetor-like armor is unknown, and it is unknown if any other models exist.

Handheld weaponry consisted of both ranged and melee weaponry, with heavier emphasis appearing to be put onto melee weapons, which came in various forms. The standard swords used by the Night Sentinels appeared to be solid metal, mostly white with some black elements, such as on the blade, making it somewhat resemble the armor of the Sentinels that wield them, with an oddly rectangular lower section of the blade, which protrudes sideways further than the rest of the blade. While first appearing to be merely the metallic component to an energy blade, these swords, presumably made from alien materials, can pierce demonic flesh, likely made from the same material as the Doom Slayer's Doomblade. Another variant of swords, seen in use in the Argenta infantry, have a blade made entirely of Sentinel Energy, bearing loose resemblance to a Crucible, but smaller, with a more conventionally-shaped blade, and far weaker. At least three variations of energy axes have been seen: a double-headed variant with both blades of equal size, another double-headed variant with a larger front blade, longer handle, and circular emitter, branded with the Doom Slayer's insignia, and one resembling a halberd, with the ax blade, pick, and pike tip all energy, the full weapon standing larger than a Human. Energy spears have only a small tip coming from a somewhat bulky emitter. Argenta shields have been seen made of entirely energy, and other unidentified forms of weaponry all bore energy blades in various configurations. Sentinel Hammers are energy-based sledgehammer-like war hammers, with blocky energy heads coming from a blocky emitter. In action, Sentinel Hammers can create large shockwaves when struck against the ground, capable of stunning demons in the shockwave radius, even large and powerful demons such as Cyberdemons and Barons of Hell. Argenta melee weapons have been seen with both red and blue energy blades, with the blue energy definitely being Sentinel Energy, while the red energy is either more intense Sentinel Energy or Argent Energy, or possibly some form of artificial coloration. It is unknown what differences the energies have from each other. The Crucible, the most powerful handheld weapon in the Argenta arsenal, is shaped like a sword, with a rather bulky handle meant to be held with two hands. The handle has two components on either side that can fold up, shutting off the main blade. The blade is a large, red energy blade, said to be made of supercharged Sentinel Energy, strong enough to cut clean through powerful demons in one swing, and is the only handheld Argenta weapon capable of killing Titans. The blade somewhat resembles the African Ikakalaka, with a flaring blade tip, and the blade appears to be covered in white runes when active. The Crucible is known to only activate in the hands of a true Sentinel warrior king, but this appears to truly refer to one with great supernatural power, as the Doom Slayer was able to wield it after exiting the Divinity Machine. Despite being energy, the Crucible blade can be broken off of the handle, leaving it embedded in its target, a feature used to prevent Titans killed by the blade from rising again. Without a blade, the Crucible can no longer activate, and must be recharged by a two step process: a special disc is fused with the handle, allowing the Crucible to hold a blade again, and the blade itself must be formed by dipping the hilt into a pool of concentrated Sentinel Energy.

Ranged Argenta weaponry is known to consist of both energy and kinetic firearms, some of which resemble Earth models. Their kinetic weapons consist of shotguns, whose sheer kinetic power and versatility allows it to keep a place among the other advanced weaponry. At least two models of shotguns have been seen: a single-barrel model, and a double-barreled model with far more firepower, able to be modified with a grappling hook. Both shotgun models may have been directly inspired by the Doom Slayer, and not of Sentinel design, but bear some alien elements, such as alien metals present in the grappling hooks or the distinctive design of the single-barrel model. Other firearms have been seen, but it is unknown if these models are energy-based or kinetic. A notable Argenta weapon is the Ballista, a large, rather flat handheld weapon with some visible runs on some of its metal coverings, and two barrels. Ballistae fire twin beams of extremely precise, superheated Argent Energy, capable of instantly vaporizing most human-sized targets, although it uses up more energy than less powerful energy armaments and has a rather slow rate of fire. The Ballista, like the Argenta shotguns, can be modified with alternate firing modes. Ranged weaponry could be fitted to the shoulders of Praetor-like armor, although it is unknown if they mirrored the flamethrower and grenade launching armaments of the Doom Slayer.

In addition to handheld weaponry and armor for individual soldiers, Argenta military technology includes various models of highly advanced war machines. One of the most powerful of these assets are Atlans, massive humanoid mechs, built to somewhat resemble the Doom Slayer's Praetor Suit. Atlans have an indistinct neck protected by an armored guard, two large horns coming from the sides of their heads, blue visors, and thrusters on their backs. Like most Night Sentinel assets, they are powered with Sentinel Energy via batteries inserted at various ports in the mechs, although they presumably have a single internal power source. The extra ports on certain limbs and armaments can enable individual parts of the Atlans to function even if the main mech is disabled, or if the part in question has been severed from the body. Standard built-in Atlan weaponry consists of powerful Sentinel Energy blasters in their palms, which can be powered by a port on their forearms, also able to release explosions of the energy from punches. Larger Sentinel Energy cannons can be built into their shoulders, like the shoulder weapons of Praetor armor models. Atlans have been seen with one shoulder gun, two shoulder guns, or no shoulder guns, powered by individual batteries inserted through their shoulders. Most Atlans use massive versions of energy spears as their main weapons, which bear either red or blue blades, with the red blades seen on deactivated Atlans in Hell possibly caused by constant exposure to Hell's energy. These spears are powered by batteries inserted near the spearhead emitters, and the flat side of the blade is stable enough for a sufficiently armored being to walk on. Atlan armaments, both built-in and handheld, are the only known Argenta armaments other than the Crucible capable of permanently killing Titans. Atlans are known to have several large internal wires linking their batteries to their powered components, and it is unknown where exactly the pilot sits, although presumably in the head, and the exact method of piloting the Atlan, such as through a mental link, conventional controls, or some other form of interface is also unknown. Strangely, Atlans are known to have the same red component on their left breasts as infantry, apprentice, and Praetor-like armor, although any functions of this larger version are unknown. Even without their added weaponry, Atlans are very strong assets, capable of fighting Titans in hand-to-hand combat and agile enough to keep up with their movements, and may even be stronger than the gargantuan demons, not to mention far better equipped. The thrusters on their backs do not appear strong enough to enable an Atlan to fly, but can presumably allow them to jump, and have been used as stabilizers to prevent Atlans from falling over after a blow from the front, even able to push back against a Titan. The materials that are used to create Atlans appear extremely resistant to erosion, as the deactivated Atlans in Hell, left for eons, appeared to have suffered little to no natural erosion, only damage caused by demons and Hellgrowth, and had several functional components that could still be powered by Sentinel batteries.

Other land-based war vehicles used by the Argenta have been seen with anti-gravity technology in place of wheels or legs. Hover-ballistae, one such vehicle, are hovering tanks with an energy-based turret, which are presumably a scaled-up form of handheld Ballistae, although they appear to be powered by Sentinel Energy rather than Argent Energy. Their hovertech is visible as large semi-spherical components protruding from their undersides, with a glowing blue ring near where they connect to the larger tank. Their armor plating and general design is rather rounded rather than angular, with some other glowing blue components and thrusters on their backside. It is unknown how many operators are needed to run the hover-ballistae, or if it needs a crew at all, but they likely require less operators than an Earth tank. In addition to their main turret, they have secondary turret on their left side that can fire far more rapidly, and a fixed turret on their front, between two jutting components. Hover-catapults, utilized as artillery, have a similar rounded design of their armor, but have a distinctly different design. The catapult's base level has a small deck for soldiers, with two small, railing-mounted turrets for defenders, as the main "cannon" of the catapult does not appear able to aim at nearby targets. The main catapult, as a sort of upper tier, resembles a giant crossbow or a slingshot, shooting highly destructive energy orbs across great distances, also able to load and fire other projectiles as well. The operators appear to be located on the personnel deck, which has a console on its railings, rather than within the main body of the catapult, but these operators could just be aiming the shots.

Argenta spacecraft are known to utilize Maykr space-folding technology, which removes the need for conventional engines and can give the ships the ability to go faster than light. This is most apparent on their capital ships, which better resemble space stations with a defined top and bottom, also bearing no visible engines, built around cores of Maykr technology. Flagships, such as the Fortress of Doom, resemble a domed structure built atop floating rocks, connected to two smaller tower-like structures suspended near the main station. The rocks of the lower station appears to only be an aesthetic, as the ship's interior is known to continue well into the "rock." While most of the technology aboard capital ships is of Argenta design and powered by Sentinel Energy, the Maykr-tech cores function as the main power plant of the ships, able to be remotely accessed by Maykrs and used to override the station's control. However, without the Maykr technology, Argenta capital ships can be powered by Argent Energy, although this will make the blue energies present on the ship become red. The ships can also be managed by AIs, although it is unknown if they are normally managed by AIs, or if this was a modification made by the Doom Slayer. Their viewports are known to be protected by forcefields, and the doors to the bridges that connect the main station to the smaller towers function as airlocks. Despite this, there appears to be gravity on the bridges, and possibly an invisible atmosphere-generating forcefield around the towers, as they lack airlocks and do not even appear fully sealed. Artificial gravity exists throughout the station, able to function for some time after the power is cut off. The command deck has several touchscreen interfaces for travel, holographic projectors, and a portal generator for personnel, able to transport them as far as other planets in the system that the station is located. The range for this teleportation is unknown, but possibly cuts off at around 245.27 million miles, as the Doom Slayer was able to use the portal to get from Earth orbit to Mars, but could not reach Argent D'Nur with it, or other dimensions such as Hell. The stations also have a few round, flat fabrication devices, capable of modifying and creating weaponry, such as equipment launchers and Ballistae, located in the command deck and in the level beneath it. There are also at least two devices which can suspend and hold an object in them, able to create an uplink to said object if the object has an interface or generates power. Behind the command deck is a large chamber going down a few levels, meant for storage, with a special cylindrical case meant for advanced weaponry such as an Unmaykr. The storage chambers can only be opened if properly powered by Sentinel batteries, while the Unmaykr's case can only be opened by specially-made keys, likely as a safety measure. Other rooms consist of living quarters, more storage rooms with retractable bridges, a massive service gantry for Atlans, a prison area in the lower levels capable of holding demons, and a sort of simulator room that can be used with live fire and living demons from the prison. Flagships have no visible external weaponry.

Other Argenta capital ships appear to be entirely solid metal, without the rock-like components of the flagships, and bear a vastly different shape, loosely resembling some sort of diamond or arrowhead, still better resembling a space station than a spaceship. Some have different configurations, somewhat resembling a block with horn-like protrusions on their sides, and others resembled thin pods, all with no visible engines, presumably running on space-folding technology like the flagships. Their interior designs are unknown, and they also display no visible external weaponry. However, smaller Sentinel warships have been seen with a more conventional shape, with heavily armored fronts and visible energy guns on their undersides. Smaller Sentinel starfighters and transports have been seen as well, also armed with rapid fire energy guns. All crafts smaller than the capital ships appear to bear conventional engines, possibly due to the space-folding technology being too big for them, or too costly.

Aside from weapons and other war-related assets, there are other examples of advanced Argenta technology utilized by the Night Sentinels and other Argenta. One such technology are Sentinel batteries, which are lantern-shaped containers of Sentinel Energy used to power various devices, mostly large assets. While their frame is constructed of dark metal, their lantern-like midsection have several glowing blue rectangular components, presumably indicating their amount of charge. Sentinel batteries are commonly used on warships, where they can even function as keys to open storage rooms, and are presumably used to power other room-sized areas, like on the warships. Due to the large size of these batteries, about the size of a small bucket, it is likely that smaller devices run on far smaller versions of these batteries, and that this model of batteries is relegated to military assets. Sentinel batteries have a handle on their topside, a small protruding component on their undersides, and are inserted bottom first into their ports, where they are twisted into place to be activated. They are presumably deactivated by being turned the other way to unlock them before they can be removed. The top of the batteries appear to be like a lid, even with small connecting arms holding it in place, making it possible that they can be opened up to be recharged or have components replaced. They are known to be extremely resistant to erosion, and able to hold their energy for eons after being discarded with seemingly no energy loss. While any smaller models of Sentinel batteries are unnamed and bear unknown appearances, a larger model of Sentinel batteries are known to exist, known as Sentinel Power Cores. Sentinel Power Cores are larger than the standard batteries, appearing to be utilized exclusively for large military assets such as Atlans and their weaponry, inserted into circular ports on select components, usually near the emitters of Atlan energy weapons. They are cylindrical in shape, with a midsection made of a clear material surrounding a smaller energy-containing cylinder, which glows blue. The tops and bottom of the Cores are made of dark metal, with a large handle on the top of the battery. The bottom of the Cores have a protruding component like that of the smaller batteries, only larger. Like Sentinel batteries, Sentinel Power Cores are inserted bottom-first, and have the same twisting mechanic to be activated. None have been seen in use outside of Atlans. Like Sentinel batteries, they are incredibly resilient to erosion, able to survive erosion for eons and still hold enough charge to power Atlans after that time, possibly made of the same materials used to build Atlans.

Another notable technology used by the Argenta are Celestial Locators. Celestial Locators appear to be highly advanced tracking devices, capable of locking onto the signals of powerful Argenta, such as the Hell Priests, and giving their exact locations across vast distances of space. It is unknown what else they can be used to track. Like Sentinel batteries, they also somewhat resemble a lantern with handles on their tops, bearing two distinct components: a metal frame with an empty midsection, the top and bottom plates connected by four thin metal arms, and a gold sphere suspended within. The inner sphere is presumably what holds most of the tracking technology, and like other Argenta technology, is powered by Sentinel Energy. When powered, several circular patterns on the surface of the inner orb glow. They can be charged by an unnamed device that takes the form of a glowing blue orb.

Slipgates, a technology utilized to link the distant Argenta-controlled worlds together, are large, circular portal generators, which create blue portals when powered by Sentinel Energy. These portals are able to transport personnel and vehicles, even those as large as Atlans and warships, across vast distances of space, depending on the range of the generators. Slipgates that have a generator on both ends can remain open indefinitely, while others only function as a one-way trip. They can also be used to generate a portal in another location to retrieve personnel or items. Slipgates whose targets are relatively close can instantly transport their passenger, while slipgates aimed at transporting across planets or dimensions have a noticeable delay in their transportation.

Argenta technologies that appear meant for civilian usage vary greatly, and not many are known. Argenta civilian crafts appear very ornate, with similar designs as the architecture of large domed structures, resembling floating buildings or more conventional spacecraft. Examples of these crafts are depicted in an illustration of Taras Nabad recovered by the Doom Slayer. Argenta settlements are known to have pole-shaped light fixtures throughout their streets that can activate with blue flame, and other similar fixtures in their buildings, but it is unknown if these are based off of magic or technology. The staffs used by the Deag Priests appear able to be used to channel their magical abilities, but it is also unknown if there is any sort of technology within them. Despite the highly advanced technology in use, examples of archaic technology have also been seen in use among the Argenta populace, such as hand-written books, conventional non-energy based melee weapons, and wooden carts meant to be drawn by animals or Argenta.

History
At some point in the ancient past, well over 60 million years ago, the Elemental Wraiths emerged from the World Spear after arriving on Argent D'Nur, emitting their Wraithcall. The Wraithcall spawned lifeforms across the planet's surface, with the first to emerge being the monstrous Ancestrals. While the Ancestrals and other behemoths spawned by the Wraithcall ravaged the surface of Argent D'Nur, the Wraithcall spawned the Argenta. Early Argenta formed tribes to stand against the Ancestrals, quickly reaching a metal-forging stage. They created forges within caves, forging swords and other weapons that enabled them to properly fight the Ancestrals. With their weapons, they were bestowed magic by the Wraiths, and used both weapons and magic to drive out the Ancestrals. With their homeland now cleared of major threats, the Argenta started their civilization, powered by energy generated by the Wraiths and given to them, known as Wraith Energy, while some groups split off to go their own way. The early Argenta civilization created farms, domesticated animals, and began construction of their cities. One of the earliest large structures was the holy arena of Sentinel Prime, the site of sacred trial-by-combat rituals. The leader of the early civilization, known as Ormero the Father, was soon crowned king, the first king of Argent D'Nur. Temples to the Wraiths were erected, with the Order of the Deag being formed as the priests of the Wraiths, offering them tributes to avoid their wrath. While the people worshipped the Wraiths, they also feared them, often hiding when they heard the incoming Wraithcall. As time went on, tribes that had previously split off from the main Argenta civilization attempted to invade the kingdom, seeking their resources, but were beaten back by a far superior force, presumably exterminated or assimilated. Various natural disasters threatened the Argenta civilization as well, destroying early buildings, and the very Wraithcall that spawned them often drove those of weaker minds mad. All these factors molded the Argenta into a militaristic race, building a strong resolve to always rise above the threats of their world, and in this time, the order of the Night Sentinels was first formed.

The Wraiths soon went dormant, but continued generating Wraith Energy, soon known as Sentinel Energy, as it was primarily utilized and distributed by the Night Sentinels. The Night Sentinels were also assigned to guard the dormant Wraiths, who were still worshipped by the Deag Priests and the Argenta populace. Despite the continued development of Argenta society, there came a period known as the Time of Grief, which appears to have stagnated Argenta development, or possibly even threw it into decline. The king during the Time of Grief, or at least at its end, was King Etrex. During his reign, extradimensional beings known as Maykrs arrived on Argent D'Nur. The Maykrs, on a campaign of vassalizing worlds across the multiverse, presented themselves as gods to the Argenta, who saw them as such. The Maykrs brought great prosperity to the Argenta in exchange for their service and worship, and the religion of the Argenta, including the Deag caste, was reorganized to worship the Maykrs in place of the Wraiths, as the Maykrs directly offered and assisted in peace and prosperity, even offering the questionable promise of eternal paradise after death in Urdak, unlike the Wraiths. Despite the shift in beliefs, the Night Sentinels never left their posts as guards of the Wraiths, and continued to use their energy.

With the Maykrs bolstering their technological advancements, working directly with the king and the priests, the Argenta began to expand across the stars, utilizing a massive fleet of capital ships built around Maykr space-folding technology. They traveled across deep space with a mission to not just establish colonies, but to bring the faith of the Maykrs to other alien races. Many of the races they came across were locked in wars with each other or controlled by oppressors, and the Argenta utilized their armies to liberate such aliens, forging alliances with them and with any others willing to join them, spreading the faith of the Maykrs to all they came across. At some point in their expansion about 60 million years ago, the Argenta came across the Orion-Cygnus Arm of the Milky Way, and are presumably the ones who spread the faith of the Maykrs across the various worlds. Argenta inhabited both a primitive Earth and a habitable Mars, and on Mars, Argenta colonists created the city of Hebeth. The inhabitants of Hebeth, known as Bethians, made Mars into a prosperous interstellar port, and created slipgate technology, an ingenious invention soon adopted by the larger Argenta civilization to better bridge their worlds together, with one slipgate located in Hebeth going directly to Sentinel Prime. However, Mars soon fell into ruin as quakes and a changing environment made Hebeth sink deep into the planet, turning Mars into an uninhabitable wasteland and killing the Bethians, whose memory would be all but lost in the future. Deag Priests led the discovery of Earth, finding it populated with dinosaurs, along with other beasts unknown to modern science, such as the monstrous Agaddon Hunters, who were given their name due to their similarity to a mythical cyclops from Argenta myths, the Aggadian. Argenta colonists created a settlement in the Arctic, the only known location of the Agaddon Hunters. For reasons unknown, this settlement would eventually be abandoned, possibly due to losing the economic boost of Mars, soon being buried beneath the arctic ice. It is unknown if the Argenta had any influence on early Humans, although the possibility remains that they spawned early man, but it remains likely that they left behind some Maykr-related artifacts later used by Humans to build religions.

The Argenta civilization grew exponentially through their space travel, the period of expansion extending well into the reign of one of Etrex's successors, King Roan. During the reign of King Roan, Davoth, the extradimensional entity who had created the Maykrs, currently locked in Hell as the Dark Lord, began to poison the mind of the Khan Maykr, the leader and biological queen of the Maykrs. He implanted a thought in her mind that a Sentinel warrior would one day rise to assassinate her, and after constructing the future-viewing Divinity Machine, the Khan Maykr saw the so-called "Destroyer" as a constant across all possibilities. The Khan Maykr met with King Roan and told him of her visions. King Roan agreed to send the strongest Argenta warriors to the Divinity Machine for testing, supposedly to remove the "impurity" in the Argenta bloodline, not knowing that the "Destroyer" would be a Human. While the Argenta wrote a prophecy of the Destroyer's coming, many generations passed before the prophecy could be fulfilled. During that time, the idea died out of public knowledge, with only the Deag Priests and Khan Maykr remaining vigilant for the Destroyer. At the same time, the same way he had manipulated the Khan Maykr, Davoth manipulated her chancellor, a Maykr Seraph named Samur, making him believe that the Khan Maykr would drive them to ruin.

The Argenta continued expanding throughout the reign of King Roan, eventually reaching the reign of King Novik. During Novik's reign, an unnamed Human man arrived on Argent D'Nur, heavily injured and covered in the blood of demons. He was a marine from Earth in the far future, who had voluntarily remained in Hell after thwarting three demonic invasions, somehow going back in time and across space. He had appeared outside the walls of Sentinel Prime itself, where two Deag Priests, Deag Ranak and Deag Nilox, were present. He was found by Night Sentinels, who noted the relatively archaic armor and weaponry he carried, and the fact that he appeared nearly insane, speaking in an unfamiliar language to them, which was English. They managed to translate at least some of what he was saying, finding that he was speaking of impending doom and demonic forces. Known as only the Outlander, the marine was taken before Deag Ranak and Deag Nilox, who inspected his helmet and noted that the marine appeared to still be able to fight despite his heavy injuries. They had him led in chains to the arena to fight for asylum, where he was pitted against Argenta fugitives. Despite appearing near-death, the marine easily defeated all of his opponents, shouting the words "Rip and tear," which the crowd and even the Sentinel guards began chanting. After emerging victorious, Deag Grav began leading the marine to be transferred to the Argenta infantry, like all others who win the arena battles. However, the Khan Maykr personally appeared in the arena, having been told about the marine and his ramblings. Interested in the demons he spoke of, she ordered Deag Grav to clean the marine's wounds and bring him to her, which Deag Grav did. The Khan Maykr had her underlings learn English, seeking to know more about Hell and the demons, knowledge which was shared with the Argenta, who saw the fiery dimension as another world to bring the faith of the Maykrs to. Afterwards, the marine was transferred to the infantry, with no title or rank, like other infantry soldiers. A short time afterwards, there was an event known as the the Black Star, possibly an eclipse. During the eve of the Black Star, demons, the very forces the marine spoke of, invaded Argent D'Nur through dimensional rifts, first appearing in the forests of the Argentian Overlands, where they assaulted the east mountains. The Alorum Clans, residents and defenders of the east mountains, quickly fell under the onslaught, as did the city of Telorum. The Night Sentinels and Argenta army quickly organized and launched a counterattack, but were unable to stop the demonic hordes, which continued pouring out of the rifts.

Appearances

 * Doom (2016)
 * Doom Eternal (2020)
 * Doom Eternal: The Ancient Gods Part 1 (2020)
 * Doom Eternal: The Ancient Gods Part 2 (2021)