Free Post-apocalyptic Games on Steam
Steam currently has 4,600 Post-apocalyptic 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 Post-apocalyptic game rankings were last updated on 4/23/2026.
Looking for more? Explore other lists such as:
- Best post-apocalyptic games on Steam
- Best post-apocalyptic Steam Deck games
- Best post-apocalyptic Steam games for Mac OS
- Best post-apocalyptic Linux games on Steam
- Free Steam games
- Most played Steam games
- Best rated Steam games
1. Once Human
Once Human is a multiplayer open-world survival game set in a strange, post-apocalyptic future. Unite with friends to fight monstrous enemies, uncover secret plots, compete for resources, and build your own territory. Once, you were merely human. Now, you have the power to remake the world.
Once Human holds the #1 spot for "best free Post-apocalyptic game on Steam" with a Player Score of 77. Its score was calculated by analyzing a total of 170,418 reviews on Steam. This breaks down to a total of 132,171 positive reviews and 38,247 negative reviews — making it "Mostly Positive" on Steam.
It can be played and ran on Windows systems. At the moment, it is not possible to play or run Once Human on the Steam Deck.
| Release Date | 7/9/2024 |
| Developer | Starry Studio |
| Publishers | |
| Steam App Id | 2139460 |
2. 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 #2 spot for the best free Post-apocalyptic games. Its score was calculated by analyzing a total of 561,780 reviews on Steam. This breaks down to a total of 511,548 positive reviews and 50,232 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 |
3. Wuthering Waves
Wuthering Waves is a story-rich open-world action RPG with a high degree of freedom. You wake from your slumber as Rover, joined by a vibrant cast of Resonators on a journey to reclaim your lost memories and change the world.
Wuthering Waves has achieved a Player Score of 88, placing it in the #3 spot for the best free Post-apocalyptic games. Its score was calculated by analyzing a total of 43,917 reviews on Steam. This breaks down to a total of 39,232 positive reviews and 4,685 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 Wuthering Waves on the Steam Deck (though some functionality may be limited).
| Release Date | 4/28/2025 |
| Developer | KURO GAMES |
| Publisher | KURO GAMES |
| Steam App Id | 3513350 |
4. Infinity Nikki
Embark on a cozy open-world adventure filled with vast landscape, mystical puzzles and unexpected platforming challenges. Dress up not just for style, but to unravel hidden mysteries, interact with a vibrant environment, and experience the freedom to explore at your own pace.
Infinity Nikki has achieved a Player Score of 55, placing it in the #4 spot for the best free Post-apocalyptic games. Its score was calculated by analyzing a total of 9,744 reviews on Steam. This breaks down to a total of 5,400 positive reviews and 4,344 negative reviews — making it "Mixed" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play Infinity Nikki on the Steam Deck (though some functionality may be limited).
| Release Date | 4/28/2025 |
| Developer | Infold Games |
| Publisher | Infold Games |
| Steam App Id | 3164330 |
5. Fallout Shelter
Fallout Shelter puts you in control of a state-of-the-art underground Vault from Vault-Tec. Build the perfect Vault, keep your Dwellers happy, and protect them from the dangers of the Wasteland.
Fallout Shelter has achieved a Player Score of 87, placing it in the #5 spot for the best free Post-apocalyptic games. Its score was calculated by analyzing a total of 80,687 reviews on Steam. This breaks down to a total of 70,967 positive reviews and 9,720 negative reviews — making it "Very 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 | 3/29/2017 |
| Developer | Bethesda Game Studios |
| Publisher | Bethesda Softworks |
| Steam App Id | 588430 |
6. Crossout
Crossout - the postapocalyptic MMO action game where you can create a unique design for an armoured vehicle from dozens of parts and then drive it into multiplayer battles raging on land and in the skies alike.
Crossout has achieved a Player Score of 74, placing it in the #6 spot for the best free Post-apocalyptic games. Its score was calculated by analyzing a total of 68,528 reviews on Steam. This breaks down to a total of 51,521 positive reviews and 17,007 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 | 7/27/2017 |
| Franchise | Gaijin Network Ltd |
| Developer | Targem Games |
| Publishers | |
| Steam App Id | 386180 |
7. Dead Frontier 2
Survival horror MMO. As one of the few survivors of the outbreak, you must scratch a living out of the decaying ruins of society. Scavenge for supplies, improve your skills, and trade with other players. All the while, keeping your eyes peeled for the infected lurking around every corner.
Dead Frontier 2 has achieved a Player Score of 69, placing it in the #7 spot for the best free Post-apocalyptic games. Its score was calculated by analyzing a total of 28,031 reviews on Steam. This breaks down to a total of 19,627 positive reviews and 8,404 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 Dead Frontier 2 on the Steam Deck (though some functionality may be limited).
| Release Date | 7/15/2019 |
| Developer | Creaky Corpse Ltd |
| Publisher | Creaky Corpse Ltd |
| Steam App Id | 744900 |
8. CounterSide
Everything has another side Urban Graphic Novel RPG "CounterSide" A world where conflict never ends between Counters and Corrupted Objects after the Administration Failure We invite you to a journey to save the Reality.
CounterSide has achieved a Player Score of 73, placing it in the #8 spot for the best free Post-apocalyptic games. Its score was calculated by analyzing a total of 3,900 reviews on Steam. This breaks down to a total of 2,938 positive reviews and 962 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 CounterSide on the Steam Deck (though some functionality may be limited).
| Release Date | 9/1/2022 |
| Developer | Studiobside Co.,Ltd |
| Publisher | Studiobside Co.,Ltd |
| Steam App Id | 1976440 |
9. Will To Live Online
Will To Live is a MMORPG-shooter whose action takes place in a severe post-apocalyptic world. Explore the world, engage in fights with mutants and other survivors, join the clans in the struggle for existence and prove your right to Live.
Will To Live Online has achieved a Player Score of 68, placing it in the #9 spot for the best free Post-apocalyptic games. Its score was calculated by analyzing a total of 18,194 reviews on Steam. This breaks down to a total of 12,636 positive reviews and 5,558 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 Will To Live Online on the Steam Deck.
| Release Date | 4/5/2018 |
| Developer | AlphaSoft LLC |
| Publisher | AlphaSoft LLC |
| Steam App Id | 707010 |
10. Horizon Walker
Eat God, and you will have everything—the story of a human who devoured God.
Horizon Walker has achieved a Player Score of 70, placing it in the #10 spot for the best free Post-apocalyptic games. Its score was calculated by analyzing a total of 2,056 reviews on Steam. This breaks down to a total of 1,496 positive reviews and 560 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 Horizon Walker on the Steam Deck (though some functionality may be limited).
| Release Date | 8/25/2025 |
| Developer | Gentlemaniac |
| Publisher | Gentlemaniac |
| Steam App Id | 3279780 |
More Free Post-apocalyptic Games
Explore even more rankings for the 100 best free Post-apocalyptic games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 9,141 | 7/9/2024 | 77 | Free | Steam Charts | |
| 8,038 | 7/7/2017 | 90 | Free | Steam Charts | |
| 5,748 | 4/28/2025 | 88 | Free | Steam Charts | |
| 1,818 | 4/28/2025 | 55 | Free | Steam Charts | |
| 1,704 | 3/29/2017 | 87 | Free | Steam Charts | |
| 874 | 7/27/2017 | 74 | Free | Steam Charts | |
| 629 | 7/15/2019 | 69 | Free | Steam Charts | |
| 524 | 9/1/2022 | 73 | Free | Steam Charts | |
| 470 | 4/5/2018 | 68 | Free | Steam Charts | |
| 467 | 8/25/2025 | 70 | Free | Steam Charts | |
 | 426 | 9/21/2023 | 75 | Free | Steam Charts | |
 | 360 | 4/24/2025 | 49 | Free | Steam Charts | |
 | 290 | 10/31/2013 | 89 | Free | Steam Charts | |
 | 250 | 6/14/2023 | 53 | Free | Steam Charts | |
 | 231 | 8/23/2019 | 49 | Free | Steam Charts | |
 | 200 | 2/2/2023 | 68 | Free | Steam Charts | |
 | 183 | 2/3/2026 | 70 | Free | Steam Charts | |
 | 168 | 9/1/2022 | 55 | Free | Steam Charts | |
 | 140 | 10/20/2022 | 65 | Free | Steam Charts | |
![Shelter 69 🔞[ADULT NSFW] steam charts](https://cdn.akamai.steamstatic.com/steam/apps/1905950/623723679975f9fb7348e1fa358ad5986fafbef8/header.jpg) | 132 | 5/16/2022 | 61 | 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. (2026, April 23). Steam Store. Steam Store.
- Valve Corporation. (2026, April 23). Once Human on Steam. Steam Store.
- Valve Corporation. (2026, April 27). Unturned on Steam. Steam Store.
- Valve Corporation. (2026, April 29). Wuthering Waves on Steam. Steam Store.
- Valve Corporation. (2026, April 24). Infinity Nikki on Steam. Steam Store.
- Valve Corporation. (2026, April 28). Fallout Shelter on Steam. Steam Store.
- Valve Corporation. (2026, April 29). Crossout on Steam. Steam Store.
- Valve Corporation. (2026, April 11). Dead Frontier 2 on Steam. Steam Store.
- Valve Corporation. (2026, April 22). CounterSide on Steam. Steam Store.
- Valve Corporation. (2026, April 29). Will To Live Online on Steam. Steam Store.
- Valve Corporation. (2026, April 23). Horizon Walker on Steam. Steam Store.