RimWorld

A sci-fi colony sim driven by an intelligent AI storyteller. Inspired by Dwarf Fortress and Firefly. Generates stories by simulating psychology, ecology, gunplay, melee combat, climate, biomes, diplomacy, interpersonal relationships, art, medicine, trade, and more.
summary by MetaCritic
Release date:17 Oct 2018
Last update:04 Nov 2025 (on Steam, public branch)
Developers: Ludeon Studios
Publishers: Ludeon Studios
Included in Steam Family Sharing
Players
  • Current 23,679
  • Peak 96,040
Last two weeks Tracked from Steam