I am currently revising the lore of Stellar Archive since i was unhappy with it. But currently i have 3orlds;

World 1, Kallion: Is a frozen wasteland inhabited by very primitive flora and fauna. Its also a near snowball earth with only a portion near the equator is free from opression of glaciers. Kallion has tree like land stromatolites, giant velvet worms who hunt cow sized Isopods grazing on moss and lichen steppes. There are also more stranger creatures like icebreakers(a type of sea star thats so huge its legs, covered in icebreaker like spikes can shatter glaciers it roams on amd under off) whale sized jawless fish and Orca like sea scorpions.

World 2, Tanitun Is a dry sunbaked wasteland. Life that exists is concentrated near two polar oceans where liquid water can exist. Hundreds of rivers pour from thsese oceans into the cinder belt where they boil up and dry out halfway to equator only to rain back on the polar oceans in an unending cycle. There is lofe in cinderbelt but not like we are used to. Strangle glass like growths resembling solar pannels form forests and weird metal beings roam between them that hunt by breathing lightning. They are not robots or artificial forms of life they are infigwnous akd evolved from the same ancestors as other Tanitun life.

Polar life on Tanitun is much more recognizable but that makes it even more uncanny.

World 3, Bantara Is a mostly eatth like planet if a bit colder and wether. Save for one thing; its gravity is only equal to that of the moon. Despite this Bantara is able to hold onto a much thicker athmosphere than earth and is dominated by flying creatures feom arthropods to birds to bats. It is also tidally locked with one side constantly facing its sun and the other never seeing it.