Alien planet.

Design your own alien planet. You can be anyone. You can be an alien that lives on the planet, or you can be a human that arrived on this planet for whatever reason you want. Or you can even be an alien from another planet that arrived on this planet for whatever reason. You can every aspect of the planet. You can chose the planet's size, climate/temparture, you can even decide to give your planet a purple sky if you want to. You can also design your own alien species. You can decide their looks, their intelligence level, their morals, their everything. The choice is yours. (And never forget. If you pay attentions to the voice, I will make sure you never sleep peacefully again. JK 😃)