Most Played Colony Sim Games on Steam
Take a look at the top colony sim games that are currently attracting the largest player bases on the Steam platform, as of October 31st 2025. Want to explore even more colony sim titles available on Steam? Explore the complete list of the best colony sim games.
Lists & Categories
1. RimWorld
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. RimWorld is a game developed and published by . Released on October 17th 2018 has received 210,517 reviews of which 206,216 were positive and 4,301 were negative resulting in an impressive rating of 9.7 out of 10. The game has hit the top spot as the #1 most played colony sim game, thanks to its 19,815 peak concurrent players over the last day.
9.7
206,216
4,301
19,815
players
2. Oxygen Not Included
Oxygen Not Included is a space-colony simulation game. Deep inside an alien space rock your industrious crew will need to master science, overcome strange new lifeforms, and harness incredible space tech to survive, and possibly, thrive. Oxygen Not Included is a game developed and published by . Released on July 30th 2019 has received 128,390 reviews of which 124,220 were positive and 4,170 were negative resulting in an impressive rating of 9.5 out of 10. While seeing 4,449 players online at once in the last 24 hours, this game is currently ranked #2 among colony sim games based on player count.
9.5
124,220
4,170
4,449
players
3. Timberborn
Humans are long gone. In a world struck by droughts and toxic waste, will your lumberpunk beavers do any better? A city-building game featuring ingenious animals, vertical architecture, water physics, and terraforming. Contains high amounts of wood. Timberborn is a game developed and published by . Released on September 15th 2021 has received 31,678 reviews of which 30,266 were positive and 1,412 were negative resulting in an impressive rating of 9.4 out of 10. While seeing 3,314 players online at once in the last 24 hours, this game is currently ranked #3 among colony sim games based on player count.
9.4
30,266
1,412
3,314
players
4. WorldBox - God Simulator
WorldBox is the ULTIMATE god simulator and sandbox game. A petri dish for your fantasy civilizations. Create your own world or destroy it using many powers. Watch civilizations grow, form kingdoms, colonize new lands, sail to far continents, wars to ignite, empires to fall and towns to burn! WorldBox - God Simulator is a game developed and published by . Released on December 02nd 2021 has received 44,062 reviews of which 41,874 were positive and 2,188 were negative resulting in an impressive rating of 9.3 out of 10. With 1,554 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played colony sim games.
9.3
41,874
2,188
1,554
players
5. Stronghold Crusader: Definitive Edition
Gird your loins and sharpen your steel! Besiege 20 unique enemy lords and battle friends online, in this expanded remaster of the classic 'castle sim'. Relive history with new units, opponents, visuals, audio, campaigns, skirmish trails, co-op and larger maps. Stronghold Crusader: Definitive Edition is a game developed and published by . Released on July 15th 2025 has received 7,296 reviews of which 6,595 were positive and 701 were negative resulting in a rating of 8.8 out of 10. With 1,512 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played colony sim games.
8.8
6,595
701
1,512
players
6. They Are Billions
They Are Billions is a Steampunk strategy game set on a post-apocalyptic planet. Build and defend colonies to survive against the billions of the infected that seek to annihilate the few remaining living humans. Can humanity survive after the zombie apocalypse? They Are Billions is a game developed and published by . Released on June 18th 2019 has received 48,765 reviews of which 41,508 were positive and 7,257 were negative resulting in a rating of 8.4 out of 10. With 1,187 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played colony sim games.
8.4
41,508
7,257
1,187
players
7. Against the Storm
A dark fantasy city builder where you must rebuild civilization in the face of apocalyptic rains. As the Queen’s Viceroy, lead humans, beavers, lizards, foxes, and harpies to reclaim the wilderness and secure a future for civilization's last survivors. Against the Storm is a game developed and published by . Released on December 08th 2023 has received 31,412 reviews of which 29,837 were positive and 1,575 were negative resulting in an impressive rating of 9.3 out of 10. With 1,006 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played colony sim games.
9.3
29,837
1,575
1,006
players
8. My Singing Monsters
Dive into the Musical World of My Singing Monsters! Breed them, feed them, listen to them sing! Breed & collect a menagerie of Monsters, each a living instrument! Build your paradise across 35+ Islands, customize your world, and enjoy endless music! There's never a dull moment in the Monster World! My Singing Monsters is a game developed and published by . Released on March 24th 2021 has received 41,701 reviews of which 39,143 were positive and 2,558 were negative resulting in an impressive rating of 9.2 out of 10. With 907 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played colony sim games.
9.2
39,143
2,558
907
players
9. Dwarf Fortress
The deepest, most intricate simulation of a world that's ever been created. The legendary Dwarf Fortress is now on Steam. Build a fortress and try to help your dwarves survive against a deeply generated world. Dwarf Fortress is a game developed and published by . Released on December 06th 2022 has received 28,579 reviews of which 27,134 were positive and 1,445 were negative resulting in an impressive rating of 9.3 out of 10. With 844 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played colony sim games.
9.3
27,134
1,445
844
players
10. Going Medieval
Build and manage your own castle settlement in a land reclaimed by wilderness. With detailed management, survival strategy, and a moddable sandbox world, Going Medieval challenges you to build the mightiest colony this side of the apocalypse. Going Medieval is a game developed and published by . Released on June 01st 2021 has received 18,506 reviews of which 16,633 were positive and 1,873 were negative resulting in a rating of 8.8 out of 10. With 601 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played colony sim games.
8.8
16,633
1,873
601
players
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