Dwarf Fortress

The legendary simulation sandbox: overwhelming depth, systemic chaos, and fortress stories unlike anything else.

Colony SimStory GeneratorExtreme DepthMod-friendlyLegendary
Dwarf Fortress deep fortress management and simulation

The Game Foundry take

Dwarf Fortress is the primordial ooze every colony sim on this list crawled out of, and it's still the deepest. The Steam version's new UI and tileset genuinely help, but the game underneath is unchanged: geology, moods, procedural history, and physics interact in ways nobody fully controls, which is exactly the point. RimWorld is Dwarf Fortress with training wheels and a story director; this is the raw version, with a steeper curve and far less hand-holding, but a ceiling on emergent chaos nothing else on this list reaches.

Best for

Simulation puristsPlayers who want maximum emergent chaosLong-time RimWorld fans wanting more depth

Quick facts

Developer
Bay 12 Games
Platforms
Pc
Difficulty
Hard

Related Game Foundry guides

Medieval settlement with workers managing farms, workshops, and fortified walls
ArticleCity builders
16 min read

10 Best Medieval City Builders and Colony Sims for Deep Settlement Management

The best medieval settlement games for production chains, winter survival, fortress building, family management, politics, and large-scale simulation.

colony-sims
Fragile settlement collapsing under winter pressure and resource shortages
ArticleColony sims
13 min read

Why Colony Sims Keep Killing Your First Run (and Which Ones Won’t)

Why your first colony sim run collapses hours later, which games hide the danger best, and which colony sims are easier first picks.

beginner-friendly
Steam Deck displaying a colony sim settlement interface on a desk
Best OfColony sims
13 min read

Best Colony Sims for Steam Deck

The best colony sims for Steam Deck, ranked by controls, readability, performance, and how well they fit portable sessions.

steam-deck
Modded colony settlement with busy colonists, machines, farms, and layered structures
Best OfColony sims
12 min read

Best Colony Sims With Strong Mod Support

Colony sims where the modding community extends the game—best scenes and must-try mods for deeper runs.

modding
Best colony sim games for long-term play cover art with settlements and survival systems
ArticleColony sims
7 min read

5 Best Colony Sim Games for 100+ Hours on PC (Long-Term Gems, 2026)

Tired of RimWorld? Discover the best colony sim games on PC designed for deep simulation, complex management, and 100+ hours of survival.

survival
Best city builder games 2026 cover art with skylines, roads, and urban planning
Best OfCity builders
Updated Jul 20, 20268 min read

Best City Builder Games You Can Play in 2026

A curated list of the best city builders, with quick picks based on complexity, pace, and player goals.

management
Best colony sim games 2026 cover art with settlement management
Best OfColony sims
Updated Jul 3, 202611 min read

Best Colony Sim Games (Updated for 2026)

The best colony simulation games worth playing right now, from RimWorld to Oxygen Not Included and beyond. These are the titles that test planning, crisis response, and long-term colony survival.

simulation

Similar games

Not sold on Dwarf Fortress? Find similar games with the Foundry Finder quiz.