Eukaris

Eukaris is a planet home to a colony of long-lost Transformers! It's probably very beasty.

Fiction

IDW Generation 1 continuity

As they battled, the Combiners Optimus Maximus, Devastator, Superion, Menasor and Defensor fell through Cybertron's Space bridge to Caminus, which Metroplex was causing to fluctuate by attempting to reach out to the other colony worlds at once. The Combiners briefly landed on Eukaris during their conflict, but soon went on to other colony worlds. Two residents of Eukaris, Airazor and Tigatron, discovered the enormous footprints the warring giants left behind. Tigatron said that this incident should be reported to everyone on Eukaris, but Airazor protested to this. Combiner Wars Part 5