Free Colony Sim Games on Steam
Steam currently has 956 Colony Sim games available to download and play. Explore our list of the best free games ranked by popularity and ratings. Data for this list is calculated from reviews and player counts reported directly by Steam and will be updated in real-time. Free Colony Sim game rankings were last updated on 3/18/2025.
Looking for more? Explore other lists such as:
- Best colony sim games on Steam
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1. My Singing Monsters
Breed them, feed them, listen to them sing! Create an island full of Singing Monsters, then watch your song evolve as you breed and upgrade them. Design and build unique decorations to make your world look just the way you want. You'll love exploring the wonderful fantasy land of the Monster World!
My Singing Monsters holds the #1 spot for "best free Colony Sim game on Steam" with a Player Score of 92. Its score was calculated by analyzing a total of 40,515 reviews on Steam. This breaks down to a total of 38,071 positive reviews and 2,444 negative reviews — making it "Very Positive" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play My Singing Monsters on the Steam Deck (though some functionality may be limited).
| Release Date | 3/24/2021 |
| Franchise | Big Blue Bubble |
| Developer | Big Blue Bubble |
| Publisher | Big Blue Bubble |
| Steam App Id | 1419170 |
2. DFHack - Dwarf Fortress Modding Engine
Extensions for Dwarf Fortress, including bugfixes, interface improvements, automation agents, design blueprints, modding building blocks, and other tools.
DFHack - Dwarf Fortress Modding Engine has achieved a Player Score of 92, placing it in the #2 spot for the best free Colony Sim games. Its score was calculated by analyzing a total of 664 reviews on Steam. This breaks down to a total of 660 positive reviews and 4 negative reviews — making it "Overwhelmingly Positive" on Steam.
It can be played and ran on both Windows and Linux systems. At the moment, it is possible to play DFHack - Dwarf Fortress Modding Engine on the Steam Deck (though some functionality may be limited).
| Release Date | 4/14/2023 |
| Developer | The DFHack Team |
| Publisher | The DFHack Team |
| Steam App Id | 2346660 |
3. Stronghold Kingdoms
A massively multiplayer grand strategy game, Stronghold Kingdoms is about forging alliances, political mind games, city-building and castle sieges with thousands of other players!
Stronghold Kingdoms has achieved a Player Score of 63, placing it in the #3 spot for the best free Colony Sim games. Its score was calculated by analyzing a total of 9,278 reviews on Steam. This breaks down to a total of 5,937 positive reviews and 3,341 negative reviews — making it "Mixed" on Steam.
It can be played and ran on Windows systems. At the moment, it is not possible to play or run Stronghold Kingdoms on the Steam Deck.
| Release Date | 2/28/2012 |
| Franchise | Firefly Studios |
| Developer | FireFly Studios |
| Publisher | FireFly Studios |
| Steam App Id | 47410 |
4. Shelter 69
Expand your shelter in a unique take on the post-apocalypse genre, thrown straight into a wild world where women reign supreme across the wastelands. You are the last male, and all is for your taking.
Shelter 69 has achieved a Player Score of 62, placing it in the #4 spot for the best free Colony Sim games. Its score was calculated by analyzing a total of 1,797 reviews on Steam. This breaks down to a total of 1,137 positive reviews and 660 negative reviews — making it "Mixed" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play Shelter 69 on the Steam Deck (though some functionality may be limited).
5. Shipping Manager
Create and manage your own shipping empire. Control every aspect from route creation to marketing to staff handling and beat other managers to top the leaderboards.
Shipping Manager has achieved a Player Score of 47, placing it in the #5 spot for the best free Colony Sim games. Its score was calculated by analyzing a total of 398 reviews on Steam. This breaks down to a total of 186 positive reviews and 212 negative reviews — making it "Mixed" on Steam.
It can be played and ran on both Windows and Linux systems. At the moment, it is possible to play Shipping Manager on the Steam Deck (though some functionality may be limited).
| Release Date | 9/18/2023 |
| Developer | Trophy Games |
| Publisher | Trophy Games |
| Steam App Id | 2445660 |
6. Build Master: MarsVille
Build Master: MarsVille is a city-building and strategy game that invites you to create your Martian colony with your engineering genius and building skills. Form alliances, trade resources, and conquer rival colonies. Embrace the challenge and become the ultimate Build Master on Mars!
Build Master: MarsVille has achieved a Player Score of 45, placing it in the #6 spot for the best free Colony Sim games. Its score was calculated by analyzing a total of 191 reviews on Steam. This breaks down to a total of 83 positive reviews and 108 negative reviews — making it "Mixed" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play Build Master: MarsVille on the Steam Deck (though some functionality may be limited).
| Release Date | 12/12/2023 |
| Developers | |
| Publisher | FIRST FUN HONG KONG LIMITED |
| Steam App Id | 2366120 |
7. Kingdom: Classic
Kingdom is a 2D sidescrolling strategy/resource management hybrid with a minimalist feel wrapped in a beautiful, modern pixel art aesthetic.
Kingdom: Classic has achieved a Player Score of 89, placing it in the #7 spot for the best free Colony Sim games. Its score was calculated by analyzing a total of 21,940 reviews on Steam. This breaks down to a total of 19,893 positive reviews and 2,047 negative reviews — making it "Very Positive" on Steam.
It can be played and ran on Windows, Mac, and Linux systems. Valve has also verified it as playable on the Steam Deck and will run well.
| Release Date | 10/21/2015 |
| Franchise | 👑 Kingdom Series 👑 |
| Developers | |
| Publisher | Raw Fury |
| Steam App Id | 368230 |
8. Romans: Age of Caesar
Build Rome Together! A co-operative grand strategy MMO from a team of veteran city builders, Romans: Age of Caesar is the latest historical strategy game from Firefly Studios.
Romans: Age of Caesar has achieved a Player Score of 46, placing it in the #8 spot for the best free Colony Sim games. Its score was calculated by analyzing a total of 405 reviews on Steam. This breaks down to a total of 184 positive reviews and 221 negative reviews — making it "Mixed" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play Romans: Age of Caesar on the Steam Deck (though some functionality may be limited).
| Release Date | 4/27/2022 |
| Franchise | Firefly Studios |
| Developer | FireFly Studios |
| Publisher | FireFly Studios |
| Steam App Id | 872570 |
9. Infection Free Zone – Prologue
Experience the first 8 days of the Zone in the Prologue to the widely anticipated post-apocalyptic city-builder game. Lead the survivors, rebuild the city, and fight against the deadly hordes of the infected. Play on 6 different real cities from around the world.
Infection Free Zone – Prologue has achieved a Player Score of 88, placing it in the #9 spot for the best free Colony Sim games. Its score was calculated by analyzing a total of 4,541 reviews on Steam. This breaks down to a total of 4,146 positive reviews and 395 negative reviews — making it "Very Positive" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play Infection Free Zone – Prologue on the Steam Deck (though some functionality may be limited).
| Release Date | 10/19/2023 |
| Franchise | Games Operators |
| Developer | Jutsu Games |
| Publisher | Games Operators |
| Steam App Id | 2485640 |
10. Castle Empire
Empire falls eventually. Build your own empire and conquer the world.
Castle Empire has achieved a Player Score of 55, placing it in the #10 spot for the best free Colony Sim games. Its score was calculated by analyzing a total of 60 reviews on Steam. This breaks down to a total of 34 positive reviews and 26 negative reviews — making it "Mixed" on Steam.
It can be played and ran on Windows systems. At the moment, it is not possible to play or run Castle Empire on the Steam Deck.
| Release Date | 9/21/2023 |
| Developer | HaoPlay Limited |
| Publisher | HaoPlay Limited |
| Steam App Id | 2566270 |
More Free Colony Sim Games
Explore even more rankings for the 74 best free Colony Sim games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 566 | 3/24/2021 | 92 | Free | Steam Charts | |
| 281 | 4/14/2023 | 92 | Free | Steam Charts | |
| 230 | 2/28/2012 | 63 | Free | Steam Charts | |
| 140 | 5/16/2022 | 62 | Free | Steam Charts | |
| 85 | 9/18/2023 | 47 | Free | Steam Charts | |
| 77 | 12/12/2023 | 45 | Free | Steam Charts | |
| 35 | 10/21/2015 | 89 | Free | Steam Charts | |
| 35 | 4/27/2022 | 46 | Free | Steam Charts | |
| 22 | 10/19/2023 | 88 | Free | Steam Charts | |
| 15 | 9/21/2023 | 55 | Free | Steam Charts | |
 | 11 | 2/21/2018 | 53 | Free | Steam Charts | |
 | 10 | 9/12/2024 | 51 | Free | Steam Charts | |
 | 9 | 9/8/2023 | 69 | Free | Steam Charts | |
 | 5 | 1/22/2021 | 61 | Free | Steam Charts | |
 | 3 | 3/10/2025 | 54 | Free | Steam Charts | |
 | 3 | 5/29/2024 | 54 | Free | Steam Charts | |
 | 3 | 2/1/2023 | 75 | Free | Steam Charts | |
 | 3 | 4/30/2024 | 84 | Free | Steam Charts | |
 | 3 | 1/30/2024 | 81 | Free | Steam Charts | |
 | 2 | 12/19/2023 | 84 | Free | Steam Charts |
Soures & References
Steambase has best-in-class data powered directly by Steam, our data partners, and in-house experts. Player counts and rankings are enriched, analyzed, and updated in real-time to ensure we surface the most up-to-date insights. Learn more about the Steambase approach to data collection and our review methodology.
- Valve Corporation. (2025, March 18). Steam Store. Steam Store.
- Valve Corporation. (2025, March 18). My Singing Monsters on Steam. Steam Store.
- Valve Corporation. (2025, March 17). DFHack - Dwarf Fortress Modding Engine on Steam. Steam Store.
- Valve Corporation. (2025, March 15). Stronghold Kingdoms on Steam. Steam Store.
- Valve Corporation. (2025, March 18). Shelter 69 on Steam. Steam Store.
- Valve Corporation. (2025, March 17). Shipping Manager on Steam. Steam Store.
- Valve Corporation. (2025, March 12). Build Master: MarsVille on Steam. Steam Store.
- Valve Corporation. (2025, March 13). Kingdom: Classic on Steam. Steam Store.
- Valve Corporation. (2025, March 13). Romans: Age of Caesar on Steam. Steam Store.
- Valve Corporation. (2025, March 13). Infection Free Zone – Prologue on Steam. Steam Store.
- Valve Corporation. (2025, March 18). Castle Empire on Steam. Steam Store.