RimWorld

Explore exotic biomes, expand your mobile colony, and launch into space. Scavenge ancient tech on asteroids, abandoned space stations, and satellites. Find and defeat the mechanoid lair.

Darkness stirs on the rim. Survive flesh infestations, cultist attacks, shambling undead, blood rains, invisible hunters, and other sanity-shredding perils. Capture and study entities to harness the power of the void. Conduct psychic rituals and awaken an evil machine god.

With Biotech, colonists (and outsiders) can become pregnant and give birth. Pregnancy can begin naturally, or via technological means, and can be controlled by a variety of methods. Babies bring joy, but also challenges. Colonists’ hearts will melt when the baby coos and giggles in their arms. But it takes effort to keep a baby happy and healthy and loved - create a safe haven for them in a cozy pastel nursery where there is always warm milk, a comfortable crib, overflowing toy chests and kind caregivers.

A sci-fi colony sim driven by an intelligent AI storyteller. Generates stories by simulating psychology, ecology, gunplay, melee combat, climate, biomes, diplomacy, interpersonal relationships, art, medicine, trade, and more.

What do you believe? RimWorld - Ideology adds belief systems to the game. Play as piratical nudist cannibals, blind undergrounder mole people, charitable ranching cowboys, machine-obsessed transhumanists, and many more.

The expansion includes a new system for nobles and titles, psychic powers, mechanoid combat structures, quests and rituals, luxurious palaces, Imperial technology, and new music from Alistair Lindsay.