Planet Sim

Colony on a broken planet

Planet Sim is a PC colony and factory-building game about rebuilding a colony ship after the Ark breaks apart in orbit. You land on a procedurally generated planet with a rover and a lander, then build a colony, produce parts and send them back into orbit to rebuild the ship.

Each planet is a complete round world you can circle. Its terrain can include savannas, rainforests, deserts, glaciers and volcanoes, along with rivers and seas. Every seed generates a different world, and presets and rules let you choose the challenge.