Planetstuck

Forty-six trolls used Sgrub to escape the extinction of their race, and then they used different means within Sgrub to escape their nine sessions, with the hopes to regroup and renew the survival of their species.

Except, they are not from the home world Alternia.

Gemma
The troll empire spanned across several planets, dwarf planets, moons and asteroids. As a result, several conquered worlds that perished under the rule of Her Imperial Condescension or conquerers before her had become colony planets for the largely-growing troll race.

As a result of the Galapagos Effect, each colony world underwent evolutionary divergence and spawned several trolls with increasingly different colorations from the home world. On Alternia, "mutations" by legal standards are under strict enough enforcement to quickly be removed from the gene pool, however hundreds of off-world colonies are simply too great in number when so much power is spent on expanding the Empire. Every colony planet eventually undergoes this change, as adults previously brought their lusii with themselves to occupy the new lands, including jadebloods with mothergrubs. Reproduction off of Alternia had been prohibited, but the Empire needed more trolls than only Alternia could supply for the labor force that supplied the vast armies. As colonies formed their own communities, evolutionary divergence caused them to grow less and less acceptable in coloration or other features, however authorities would have to cull the entire population of every colony planet. It had been tried previously, but the next generation hatched only to be more different from Alternians. It had to be allowed eventually, but colonial trolls would always be inferior to all Alternian "purebloods"... with, perhaps, the pardon of highbloods. Some colonies' native hemospectrum brightened, others darkened or dulled, and a few hatched with wings.

On one of these worlds, Gemma, the inhabitant hemospectrum continued to brighten until "brightbloods" and "palebloods" began to appear. Only eight of them earned legal recognition of their signs, and the vast majority were still awaiting approval for the signs for their own hemospectra when Sgrub caused a meteor apocalypse and the Vast Glub. Aside from hemospectrum, Gemman trolls' horns were slightly duller in color, and those of a certain hemospectrum brightness would hatch with white hair. Among these, feathered lusii began to appear for their accompaniment.

Environmentally, Gemma was mostly cliffs and mountain ranges veiled in cloud cover, and all continents were more like closely-spaced island ranges. Most hives were built into the cliffs and mountains themselves.