Extraterrestials

Extraterrestial lifeforms, extraterrestials or simply ETs are lifeforms originating from any planet except Earth. The amount of complex extraterrestial lifeforms is low, but there are various extraterrestial microbiology that helps the humans. As of year 48000, the amount of total extraterrestial civilizations are 3 (all are extinct), fauna are 62 (13 are non-extinct), flora are 13 (8 are non-extinct) and other organisms are 864 (325 are non-extinct).

Civilizations
All of the discovered alien civilizations are extinct, and not all civilizations existed in the time of human interstellar revolution.

Kalagirans
A race of quadripedal, aluminum-based organisms with hooves. Lacking arms, their lips were made so that they can grab objects. Eventually, they discovered robotics, which made their lives even better. Their peak was around 320 000 BC. Eventually, they encountered a rival civilization of aliens - the Phansemoi. Eventually they won, but the Phansemoi poisoned all of the planets known to them. Having nowhere to go and lacking cryogenics, Kalagirans breeded inside various spaceships. Some of them, lacking control due to their ships having a set path, eventually crashed into various stars. Myth still exist about their ships and they say whoever finds a lost ship, he becomes their god.

Phansemoi
A race of wolfram-based symbiotic, radioactive, bipedal organisms that were less technologically advanced than the Kalagirans. Instead of arms, they had whips, which were used to move things by wrapping them. Their peak was later than the Kalagiran peak, around 290 000 BC. Eventually they tried to colonize a planet inhabited by the Kalagirans. Both being aggressive, uncontrolable species, they went into a war. The Phansemoi used biological weapons more than the Kalagirans, and secretly planted several biobombs inside the cores of all the known planets. Eventually, the Phansemoi were obliterated, but moments before the last Phansemoi was killed. the bombs exploded, causing mass damage to the rival Kalagirans. Most of the poison was dissolved in the year 12368, but some of the strongest posion, such as the one on the former capital planet of the Kalagiran empire, still lasts today.

Emberthings
The Emberthings were not a stellar civilization, but they had their own culture. They were the only instance of an extraterrestial creature developing arms, and they had four legs. They were made out of various other components, including, but not limited to, sulfur, carbon, iron, silicon and many others. Their skin was dark green, but there were no signs of chlorophyl. The SSotM Ember discovered them, and when attempting to make contact with them, caused mass suicides. Several Emberthings were left on the planet. The last Emberthing, nicknamed Lai, jumped out of the window when the expedition team entered the building it was in. They are the first, and possibly only extraterrestrial civilizations that the humans encountered.