RimWorld is a sci-fi colony simulation game developed by Ludeon Studios. Players manage a group of crash-landed space colonists on a distant planet, guiding them to survive, build, and thrive. The game features a complex AI storyteller that creates unique challenges and events, ensuring no two playthroughs are the same. Players must gather resources, construct buildings, and maintain the colonists' needs, such as food, shelter, and mental well-being. The game includes various factions, wildlife, and environmental factors that influence gameplay, making strategic planning essential for success in this dynamic and often unpredictable world.