HEEC-2

High Energy Emission Civilization-2 is the designation given to an advanced extraterrestrial civilization. They are notable for being the only HEEC out of the seven currently present in the Milky Way to have successfully reclaimed the galactic core, thus being on par with the Terragen Sphere.

Culture and society
HEEC-2 is similar to the Terragen Sphere in terms of technology (having created AI as advanced) and energy output. There is no evidence that its denizens inhabit celestial bodies, relying instead on the construction of megastructures to provide them with housing and computation. HEEC-2 does not show expansionist trends, as the volume it occupies has remained unchanged since its discovery.