Free Colony Sim Games on Steam
Steam currently has 1,008 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 5/5/2025.
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 41,260 reviews on Steam. This breaks down to a total of 38,754 positive reviews and 2,506 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. 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 #2 spot for the best free Colony Sim games. Its score was calculated by analyzing a total of 9,319 reviews on Steam. This breaks down to a total of 5,962 positive reviews and 3,357 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 | 2/27/2012 |
| Franchise | Firefly Studios |
| Developer | FireFly Studios |
| Publisher | FireFly Studios |
| Steam App Id | 47410 |
3. Diplomacy is Not an Option: Shareware
Diplomacy is Not an Option: Shareware is a free prequel to the original game. In a medieval fantasy world, you are to build settlements, raise huge armies, and defend against massive hordes of enemies. Learn how Ironbrow clan shaped the world's map the first time - if you survive, that is.
Diplomacy is Not an Option: Shareware has achieved a Player Score of 82, placing it in the #3 spot for the best free Colony Sim games. Its score was calculated by analyzing a total of 30 reviews on Steam. This breaks down to a total of 30 positive reviews and 0 negative reviews — making it "Positive" on Steam.
It can be played and ran on Windows systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.
4. 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 #4 spot for the best free Colony Sim games. Its score was calculated by analyzing a total of 714 reviews on Steam. This breaks down to a total of 709 positive reviews and 5 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 |
5. 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 #5 spot for the best free Colony Sim games. Its score was calculated by analyzing a total of 1,823 reviews on Steam. This breaks down to a total of 1,148 positive reviews and 675 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).
6. 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 48, placing it in the #6 spot for the best free Colony Sim games. Its score was calculated by analyzing a total of 413 reviews on Steam. This breaks down to a total of 196 positive reviews and 217 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 |
7. 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 43, placing it in the #7 spot for the best free Colony Sim games. Its score was calculated by analyzing a total of 213 reviews on Steam. This breaks down to a total of 88 positive reviews and 125 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 |
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 45, placing it in the #8 spot for the best free Colony Sim games. Its score was calculated by analyzing a total of 411 reviews on Steam. This breaks down to a total of 183 positive reviews and 228 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. 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 #9 spot for the best free Colony Sim games. Its score was calculated by analyzing a total of 22,027 reviews on Steam. This breaks down to a total of 19,970 positive reviews and 2,057 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 |
10. Empire City Simulator
Become a ruler and build the ancient city of your dreams in Empire City! Unlock new opportunities for your city's prosperity, gain the support of the gods, construct grand buildings, and create unique infrastructure. Transform a small settlement into a magnificent center of civilization!
Empire City Simulator has achieved a Player Score of 51, placing it in the #10 spot for the best free Colony Sim games. Its score was calculated by analyzing a total of 31 reviews on Steam. This breaks down to a total of 16 positive reviews and 15 negative reviews — making it "Mixed" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play Empire City Simulator on the Steam Deck (though some functionality may be limited).
| Release Date | 9/12/2024 |
| Developer | Red Brix Wall |
| Publisher | Red Brix Wall |
| Steam App Id | 3076620 |
More Free Colony Sim Games
Explore even more rankings for the 80 best free Colony Sim games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 658 | 3/24/2021 | 92 | Free | Steam Charts | |
| 310 | 2/27/2012 | 63 | Free | Steam Charts | |
| 171 | 4/30/2025 | 82 | Free | Steam Charts | |
| 138 | 4/14/2023 | 92 | Free | Steam Charts | |
| 125 | 5/16/2022 | 62 | Free | Steam Charts | |
| 88 | 9/18/2023 | 48 | Free | Steam Charts | |
| 59 | 12/12/2023 | 43 | Free | Steam Charts | |
| 45 | 4/27/2022 | 45 | Free | Steam Charts | |
| 41 | 10/21/2015 | 89 | Free | Steam Charts | |
| 22 | 9/12/2024 | 51 | Free | Steam Charts | |
 | 18 | 4/22/2025 | 60 | Free | Steam Charts | |
 | 16 | 9/2/2024 | 57 | Free | Steam Charts | |
 | 16 | 9/21/2023 | 54 | Free | Steam Charts | |
 | 13 | 9/8/2023 | 69 | Free | Steam Charts | |
 | 13 | 7/26/2024 | 81 | Free | Steam Charts | |
 | 10 | 4/30/2024 | 84 | Free | Steam Charts | |
 | 9 | 3/24/2025 | 73 | Free | Steam Charts | |
 | 7 | 2/21/2018 | 52 | Free | Steam Charts | |
 | 6 | 2/24/2023 | 52 | Free | Steam Charts | |
 | 5 | 5/29/2024 | 57 | 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, May 5). Steam Store. Steam Store.
- Valve Corporation. (2025, May 5). My Singing Monsters on Steam. Steam Store.
- Valve Corporation. (2025, April 18). Stronghold Kingdoms on Steam. Steam Store.
- Valve Corporation. (2025, May 4). Diplomacy is Not an Option: Shareware on Steam. Steam Store.
- Valve Corporation. (2025, May 3). DFHack - Dwarf Fortress Modding Engine on Steam. Steam Store.
- Valve Corporation. (2025, May 4). Shelter 69 on Steam. Steam Store.
- Valve Corporation. (2025, April 17). Shipping Manager on Steam. Steam Store.
- Valve Corporation. (2025, April 25). Build Master: MarsVille on Steam. Steam Store.
- Valve Corporation. (2025, April 7). Romans: Age of Caesar on Steam. Steam Store.
- Valve Corporation. (2025, March 13). Kingdom: Classic on Steam. Steam Store.
- Valve Corporation. (2025, May 2). Empire City Simulator on Steam. Steam Store.