The Planets

The Aliens arrive from 10 different (unique) planets: Aquaria, Crimson City, Heaven's Gate, Hydropia, Lavenderia, Magentia, Mineral District, Petraville, Serenity and Snotropolis.
Each planet has 51 Aliens native to it, hence the name, "51 Aliens".
Here are links to all 10 planets:
Last modified 4mo ago