The Mechnosis are war machines that were made sentient by the last survivors of their creator species as a final act of revenge in their war which doomed them to extinction.
The machines continued their war even after they were all long gone.
Two worlds went to war which lead to both civilizations mutual extinction, the only things left behind were their creations. The Gadgenoid, and the Mechnosis.
The Gadgenoid are sentient machines designed with the ability to combine with eachother.
This shows two species, the Endaleth, an old cepholapod-like species, and Silicath, a silicone based sentient crystals who use robotic drone bodies to move around.
Felisian are a species of sentient felines who gained human-like features through the reality warping Plasmedic radiation.
They have some dramatic height differences based on what feline lineage they have.
Descendants of a group of Wolfren that traveled to another world and were further exposed to the reality warping Plasmedic radiation.
It mutated their DNA to become more human-like.
Quillious are a species of sea horse-like beings, who's civilization was accidentally uplifted when the Coalition of Sentient Worlds went to their homeworld with plans to use it as a resource world. Those plans quickly were dropped after that mix-up.
The Guumii are a species of sentient colonial slime that feed on radiation much like how plants use photosynthesis. Finding the more radioactive energeis, like gamma, the more nutritious.
They often work in maintaining reactors on ships and power plants.
Trants share the same common ancestor with Humans, Faemen, and Dwemen.
They evolved on a world which was constantly exposed to a reality warping radiation that twisted their DNA and melded it with various animal DNA.