Alien Worlds

Alien worlds are entirely fictional organisms evolving on a planet. Unlike with alternate earths or seed-worlds, alien worlds have no pre-established organisms to pull from, all of the organisms are entirely unique. It's possible to have an alien seed-world, if it's already from a pre-established project, and it's also possible to have an alternate alien world. Alternate alien worlds are extremely rare, and the only current recorded instance of this is The Janjira Project: Disdawpocalypse.