Kryptonian

Kryptonians are an endangered near-Human species from the now-destroyed planet Krypton. Superman is the last of the Kryptonians. They are the enemies of the Dheronian species as every twenty years they were at war for each other's treasures.

Powers & Abilities
Kryptonians, once outside their star sytem, acquire new abilities determined by the frequency of each sun's light and internal radiation. White stars, dwarf stars, and blue stars all give them different properties.

Yellow Sun Abilities

 * Superhuman Strength
 * Superhuman Speed
 * Superhuman Endurance
 * Superhuman Senses
 * Superhuman Mentality
 * Superhuman Agility
 * Invulnerability
 * Healing Factor
 * Heat Vision
 * X-Ray Vision
 * Flight

Pulsar & Quasar Abilities
Power beyond imagining.

Weaknesses

 * Kryptonite: Kryptonians are vulnerable to Kryptonite. There are five 305px-20070424-kryptonite.gif types of Kryptonite, green, red, yellow, blue, and white, each with their own respective effects. Weapons and other materials made from or with Kryptonite can effect or even kill them just as they do to Humans.
 * Black Holes: Black holes consume them completely.
 * Magic: Their near invulnerability grants them no protection from supernatural forces.
 * Red Stars: They are depowered and reverted back to their natural state once exposed to the precise frequency (natural or synthetic) of their native red sun.
 * Dheronian Metal: Kryptonians can be hurt by Dheronian metal.
 * Kryptonian Metal: Kryptonians are fully vulnerable to Kryptonian metal.
 * Alien Organisms: Kryptonians can be injured or even killed by certain alien beings.

Technology
Kryptonian technology and architecture was mostly based on giant self-grown crystals which were very common on their planet and could be used to store information. These structures might have been natural or artificial, or a combination of both. Kryptonian technology was so advanced, that they had the potential to download inscriptions (including all of their knowlege) onto the very electrons of their ships and metals.

Culture
The Kryptonians had two primary culture traits: science and warriorism. The political powers on the planet were governed by a council of scientists and warriors (but mostly scientists). Each noble Kryptonian family (or "House") was symbolized by particular symbols which resemble Earth's alphabetical letters (such as "S" for El or "Z" for Zod). The red dwarf star, Rao of Krypton's planetary system was worshiped as a god, but in a more scientific manner than Earth's spiritual religions. Kryptonian Dogs were kept as pets by the Kryptonian people, much like Earth Dogs are kept as pets by Humans.

The Kryptonian people were a very xenophobic race that hardly ever left their homeworld, making Kal-El (a.k.a. Superman) the only Kryptonian left when the planet exploded.

Enemies
Kryptonians were somewhat of a self promoting and indulging race and were willing to utilize lethal force to take valuables from other worlds. The planet Dheron, the fifth planet from Krypton's red sun, was one such planet. Every twenty years, the planets were at war over each other's treasures. In an act of revenge, the two races disabled each other's star travel abilities. The Dheronians view theselves as the natural enemies of Kryptonians and are partially responsible both for the destruction of Krypton and the near-extermination of the Kryptonian race.