Free Sandbox Games on Steam
Steam currently has 7,345 Sandbox 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 Sandbox game rankings were last updated on 7/1/2025.
Looking for more? Explore other lists such as:
- Best sandbox games on Steam
- Best sandbox Steam Deck games
- Best sandbox Steam games for Mac OS
- Best sandbox Linux games on Steam
- Free Steam games
- Most played Steam games
- Best rated Steam games
1. tModLoader
Dig, Fight, and Build your way through the world of player-created mods on Terraria with tModLoader - this DLC makes modding Terraria a reality!
tModLoader holds the #1 spot for "best free Sandbox game on Steam" with a Player Score of 96. Its score was calculated by analyzing a total of 321,489 reviews on Steam. This breaks down to a total of 312,175 positive reviews and 9,314 negative reviews — making it "Overwhelmingly Positive" on Steam.
It can be played and ran on Windows, Mac, and Linux systems. At the moment, it is possible to play tModLoader on the Steam Deck (though some functionality may be limited).
2. VRChat
Join our growing community as you explore, play, and help craft the future of social VR. Create worlds and custom avatars. Welcome to VRChat.
VRChat has achieved a Player Score of 75, placing it in the #2 spot for the best free Sandbox games. Its score was calculated by analyzing a total of 243,486 reviews on Steam. This breaks down to a total of 183,808 positive reviews and 59,678 negative reviews — making it "Mostly Positive" on Steam.
It can be played and ran on Windows systems. Valve has also verified it as playable on the Steam Deck and will run well.
| Release Date | 2/1/2017 |
| Developer | VRChat Inc. |
| Publisher | VRChat Inc. |
| Steam App Id | 438100 |
3. The Sims™ 4
Play with life and discover the possibilities. Unleash your imagination and create a world of Sims that’s wholly unique. Explore and customize every detail from Sims to homes–and much more.
The Sims™ 4 has achieved a Player Score of 86, placing it in the #3 spot for the best free Sandbox games. Its score was calculated by analyzing a total of 174,526 reviews on Steam. This breaks down to a total of 152,363 positive reviews and 22,163 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 The Sims™ 4 on the Steam Deck (though some functionality may be limited).
| Release Date | 6/18/2020 |
| Franchise | The Sims |
| Developer | Maxis |
| Publisher | Electronic Arts |
| Steam App Id | 1222670 |
4. Unturned
You're a survivor in the zombie infested ruins of society, and must work with your friends and forge alliances to remain among the living.
Unturned has achieved a Player Score of 90, placing it in the #4 spot for the best free Sandbox games. Its score was calculated by analyzing a total of 556,212 reviews on Steam. This breaks down to a total of 507,124 positive reviews and 49,088 negative reviews — making it "Very Positive" on Steam.
It can be played and ran on Windows, Mac, and Linux systems. At the moment, it is possible to play Unturned on the Steam Deck (though some functionality may be limited).
| Release Date | 7/7/2017 |
| Developer | Smartly Dressed Games |
| Publisher | Smartly Dressed Games |
| Steam App Id | 304930 |
5. IdleOn - The Idle RPG
Create your own heroes who keep playing after you close the game! When you return, spend their loot on upgrades and powerful synergies — each BOSS you defeat unlocks new content, so you won't reach endgame without a fight!
IdleOn - The Idle RPG has achieved a Player Score of 78, placing it in the #5 spot for the best free Sandbox games. Its score was calculated by analyzing a total of 22,742 reviews on Steam. This breaks down to a total of 18,139 positive reviews and 4,603 negative reviews — making it "Mostly Positive" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play IdleOn - The Idle RPG on the Steam Deck (though some functionality may be limited).
| Release Date | 4/2/2021 |
| Developer | Lavaflame2 |
| Publisher | Lavaflame2 |
| Steam App Id | 1476970 |
6. Blender
Blender is the free and open source 3D creation suite. Free to use for everyone, for any purpose.
Blender has achieved a Player Score of 95, placing it in the #6 spot for the best free Sandbox games. Its score was calculated by analyzing a total of 74,866 reviews on Steam. This breaks down to a total of 72,074 positive reviews and 2,792 negative reviews — making it "Overwhelmingly Positive" on Steam.
It can be played and ran on Windows, Mac, and Linux systems. At the moment, it is not possible to play or run Blender on the Steam Deck.
| Release Date | 4/24/2015 |
| Developer | Blender Foundation |
| Publisher | Blender Foundation |
| Steam App Id | 365670 |
7. Albion Online
Albion Online is a fantasy sandbox MMORPG featuring a player-driven economy, classless combat system, and intense PvP battles. Explore a vast open world full of danger and opportunity. Grow your wealth, forge alliances, and leave your mark on the world of Albion.
Albion Online has achieved a Player Score of 78, placing it in the #7 spot for the best free Sandbox games. Its score was calculated by analyzing a total of 84,348 reviews on Steam. This breaks down to a total of 66,503 positive reviews and 17,845 negative reviews — making it "Mostly Positive" on Steam.
It can be played and ran on Windows, Mac, and Linux systems. At the moment, it is possible to play Albion Online on the Steam Deck (though some functionality may be limited).
| Release Date | 5/16/2018 |
| Developer | Sandbox Interactive GmbH |
| Publisher | Sandbox Interactive GmbH |
| Steam App Id | 761890 |
8. Supermarket Together
The multiplayer supermarket has arrived to your neighbourhood for free! Stock your shop space, unlock perks and franchises, hire employees or chase those pesky shoplifters. The more players, the more action!
Supermarket Together has achieved a Player Score of 93, placing it in the #8 spot for the best free Sandbox games. Its score was calculated by analyzing a total of 71,543 reviews on Steam. This breaks down to a total of 67,834 positive reviews and 3,709 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 Supermarket Together on the Steam Deck (though some functionality may be limited).
| Release Date | 8/9/2024 |
| Developer | DeadDevsTellNoLies |
| Publisher | DeadDevsTellNoLies |
| Steam App Id | 2709570 |
9. Conqueror's Blade
Conqueror's Blade gives you a chance to be a true warlord. Commanding medieval troops in epic 15 vs. 15 siege battles, conquering cities with allies in the open world or fighting against players from all over the world – it's you who make the choice.
Conqueror's Blade has achieved a Player Score of 67, placing it in the #9 spot for the best free Sandbox games. Its score was calculated by analyzing a total of 34,991 reviews on Steam. This breaks down to a total of 23,889 positive reviews and 11,102 negative reviews — making it "Mixed" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play Conqueror's Blade on the Steam Deck (though some functionality may be limited).
| Release Date | 4/6/2020 |
| Developer | Booming Tech |
| Publishers | |
| Steam App Id | 835570 |
10. Cell to Singularity - Evolution Never Ends
The epic story of evolution, technology, humanity, and dinosaurs is yours to tap.
Cell to Singularity - Evolution Never Ends has achieved a Player Score of 88, placing it in the #10 spot for the best free Sandbox games. Its score was calculated by analyzing a total of 24,040 reviews on Steam. This breaks down to a total of 21,577 positive reviews and 2,463 negative reviews — making it "Very Positive" on Steam.
It can be played and ran on both Windows and Mac systems. At the moment, it is possible to play Cell to Singularity - Evolution Never Ends on the Steam Deck (though some functionality may be limited).
| Release Date | 11/3/2021 |
| Developer | Computer Lunch |
| Publisher | Computer Lunch |
| Steam App Id | 977400 |
More Free Sandbox Games
Explore even more rankings for the 100 best free Sandbox games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 32,864 | 5/16/2020 | 96 | Free | Steam Charts | |
| 32,730 | 2/1/2017 | 75 | Free | Steam Charts | |
| 27,741 | 6/18/2020 | 86 | Free | Steam Charts | |
| 15,518 | 7/7/2017 | 90 | Free | Steam Charts | |
| 10,533 | 4/2/2021 | 78 | Free | Steam Charts | |
| 9,393 | 4/24/2015 | 95 | Free | Steam Charts | |
| 9,002 | 5/16/2018 | 78 | Free | Steam Charts | |
| 5,565 | 8/9/2024 | 93 | Free | Steam Charts | |
| 4,833 | 4/6/2020 | 67 | Free | Steam Charts | |
| 2,793 | 11/3/2021 | 88 | Free | Steam Charts | |
 | 2,793 | 12/15/2010 | 73 | Free | Steam Charts | |
 | 1,587 | 7/26/2017 | 74 | Free | Steam Charts | |
 | 1,395 | 7/15/2019 | 69 | Free | Steam Charts | |
 | 1,254 | 2/14/2012 | 89 | Free | Steam Charts | |
 | 1,096 | 3/29/2017 | 87 | Free | Steam Charts | |
 | 1,069 | 8/2/2013 | 84 | Free | Steam Charts | |
 | 890 | 10/1/2020 | 90 | Free | Steam Charts | |
 | 888 | 7/9/2015 | 79 | Free | Steam Charts | |
 | 883 | 7/10/2012 | 91 | Free | Steam Charts | |
 | 808 | 9/2/2021 | 88 | 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, July 1). Steam Store. Steam Store.
- Valve Corporation. (2025, July 1). tModLoader on Steam. Steam Store.
- Valve Corporation. (2025, July 26). VRChat on Steam. Steam Store.
- Valve Corporation. (2025, July 26). The Sims™ 4 on Steam. Steam Store.
- Valve Corporation. (2025, July 25). Unturned on Steam. Steam Store.
- Valve Corporation. (2025, July 25). IdleOn - The Idle RPG on Steam. Steam Store.
- Valve Corporation. (2025, July 26). Blender on Steam. Steam Store.
- Valve Corporation. (2025, July 23). Albion Online on Steam. Steam Store.
- Valve Corporation. (2025, July 24). Supermarket Together on Steam. Steam Store.
- Valve Corporation. (2025, July 25). Conqueror's Blade on Steam. Steam Store.
- Valve Corporation. (2025, July 26). Cell to Singularity - Evolution Never Ends on Steam. Steam Store.