Free Outbreak Sim Games on Steam
Steam currently has 219 Outbreak 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 Outbreak Sim game rankings were last updated on 10/22/2024.
Looking for more? Explore other lists such as:
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1. State of Survival
Survive the Zombies War in this RPG game of Apocalypse and Survival
State of Survival holds the #1 spot for "best free Outbreak Sim game on Steam" with a Player Score of 56. Its score was calculated by analyzing a total of 365 reviews on Steam. This breaks down to a total of 210 positive reviews and 155 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 State of Survival on the Steam Deck.
| Release Date | 8/2/2023 |
| Developer | FunPlus International AG |
| Publisher | FunPlus International AG |
| Steam App Id | 2485460 |
2. 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 #2 spot for the best free Outbreak Sim games. Its score was calculated by analyzing a total of 4,456 reviews on Steam. This breaks down to a total of 4,090 positive reviews and 366 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 |
3. Doomsday Dispute
Doomsday Dispute introduces a post-apocalypse world where you need to survive and find other survivors to start a new civilization.
Doomsday Dispute has achieved a Player Score of 67, placing it in the #3 spot for the best free Outbreak Sim games. Its score was calculated by analyzing a total of 119 reviews on Steam. This breaks down to a total of 86 positive reviews and 33 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 Doomsday Dispute on the Steam Deck.
| Release Date | 11/17/2021 |
| Developer | Doomsday Dispute |
| Publisher | Doomsday Dispute |
| Steam App Id | 1792710 |
4. Zombie Siege City
Grab your weapon, enjoy the thrill of zombie shooting, and don't stop firing until every last zombie is... well and truly dead. Earn rewards for your efforts, unlock new weapons, upgrade existing ones, and exterminate as many walking dead as possible.
Zombie Siege City has achieved a Player Score of 70, placing it in the #4 spot for the best free Outbreak Sim games. Its score was calculated by analyzing a total of 97 reviews on Steam. This breaks down to a total of 74 positive reviews and 23 negative reviews — making it "Mostly 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.
| Release Date | 11/2/2024 |
| Developer | STAR WORKS COMPANY LIMITED |
| Publisher | STAR WORKS COMPANY LIMITED |
| Steam App Id | 3116530 |
5. Post-Apo Builder: Prologue
Discover a post-apocalyptic world Collect resources and manage people Build your colony on the remains of an oil tanker Prepare supplies and vehicles for a dangerous expedition. Complete challenging tasks from the council of elders
Post-Apo Builder: Prologue has achieved a Player Score of 66, placing it in the #5 spot for the best free Outbreak Sim games. Its score was calculated by analyzing a total of 407 reviews on Steam. This breaks down to a total of 280 positive reviews and 127 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 Post-Apo Builder: Prologue on the Steam Deck.
| Release Date | 8/2/2023 |
| Franchise | G-DEVS Games |
| Developer | Septarian Games |
| Publishers | |
| Steam App Id | 2130380 |
6. 丧尸世界-经典策略卡牌养成
Zombie World is a free placement strategy game. You will lead your hero team to search for materials, explore secret places, fight against foreign enemies and build your own hero base in the dangerous end times.
丧尸世界-经典策略卡牌养成 has achieved a Player Score of 44, placing it in the #6 spot for the best free Outbreak Sim games. Its score was calculated by analyzing a total of 8 reviews on Steam. This breaks down to a total of 3 positive reviews and 5 negative reviews — making it "8 user reviews" on Steam.
It can be played and ran on Windows systems. At the moment, it is not possible to play or run 丧尸世界-经典策略卡牌养成 on the Steam Deck.
| Release Date | 3/10/2023 |
| Developer | 团队集结，决战末日巅峰 |
| Publisher | 官方QQ群：873997466 |
| Steam App Id | 2264970 |
7. Plane Accident: Prologue
Dive into the heart of aviation mysteries in "Plane Accident: Prologue." Explore realistic crash sites, analyze evidence, and solve puzzles. Unveil the truth in this thrilling prelude to the full "Plane Accident" experience.
Plane Accident: Prologue has achieved a Player Score of 65, placing it in the #7 spot for the best free Outbreak Sim games. Its score was calculated by analyzing a total of 40 reviews on Steam. This breaks down to a total of 29 positive reviews and 11 negative reviews — making it "Mostly 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.
| Release Date | 1/18/2024 |
| Franchise | Duality Games |
| Developers | |
| Publishers | |
| Steam App Id | 2104670 |
8. 防疫英雄
这是一款休闲益智类游戏。根据经典的PVZ类游戏的核心玩法的基础上，创新题材，创新无尽模式。
防疫英雄 has achieved a Player Score of 61, placing it in the #8 spot for the best free Outbreak Sim games. Its score was calculated by analyzing a total of 87 reviews on Steam. This breaks down to a total of 57 positive reviews and 30 negative reviews — making it "Mixed" 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.
9. Desperate ESCAPE
Ted Williams, who has been sheltering in a school bunker for three years after a rocket attack, now has to escape due to a lack of food supplies. To do this, he has to solve his self-constructed puzzles and obstacles that were supposed to prevent him from escaping the bunker.
Desperate ESCAPE has achieved a Player Score of 81, placing it in the #9 spot for the best free Outbreak Sim games. Its score was calculated by analyzing a total of 33 reviews on Steam. This breaks down to a total of 32 positive reviews and 1 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.
| Release Date | 1/8/2024 |
| Developer | CN Entertainment Germany |
| Publisher | CN Entertainment |
| Steam App Id | 2731650 |
10. Distancing
Distancing is a social distancing game where you are going to a party, but on the way you need to try and keep the social distancing.
Distancing has achieved a Player Score of 72, placing it in the #10 spot for the best free Outbreak Sim games. Its score was calculated by analyzing a total of 155 reviews on Steam. This breaks down to a total of 122 positive reviews and 33 negative reviews — making it "Mostly 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.
| Release Date | 3/17/2021 |
| Developers | |
| Publishers | |
| Steam App Id | 1562860 |
More Free Outbreak Sim Games
Explore even more rankings for the 17 best free Outbreak Sim games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 154 | 8/2/2023 | 56 | Free | Steam Charts | |
| 8 | 10/19/2023 | 88 | Free | Steam Charts | |
| 2 | 11/17/2021 | 67 | Free | Steam Charts | |
| 2 | 11/2/2024 | 70 | Free | Steam Charts | |
| 2 | 8/2/2023 | 66 | Free | Steam Charts | |
| 1 | 3/10/2023 | 44 | Free | Steam Charts | |
| 1 | 1/18/2024 | 65 | Free | Steam Charts | |
| 1 | 6/23/2022 | 61 | Free | Steam Charts | |
| 1 | 1/8/2024 | 81 | Free | Steam Charts | |
| 1 | 3/17/2021 | 72 | Free | Steam Charts | |
 | 1 | 1/27/2023 | 62 | Free | Steam Charts | |
 | 1 | 4/7/2023 | 53 | Free | Steam Charts | |
 | 1 | 6/17/2022 | 80 | Free | Steam Charts | |
 | 1 | 8/9/2022 | 67 | Free | Steam Charts | |
 | 1 | 5/10/2022 | 77 | Free | Steam Charts | |
 | 1 | 3/7/2024 | 78 | Free | Steam Charts | |
 | 1 | 2/8/2021 | 81 | 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. (2024, October 22). Steam Store. Steam Store.
- Valve Corporation. (2024, October 22). State of Survival on Steam. Steam Store.
- Valve Corporation. (2024, October 30). Infection Free Zone – Prologue on Steam. Steam Store.
- Valve Corporation. (2024, September 20). Doomsday Dispute on Steam. Steam Store.
- Valve Corporation. (2024, November 16). Zombie Siege City on Steam. Steam Store.
- Valve Corporation. (2024, October 9). Post-Apo Builder: Prologue on Steam. Steam Store.
- Valve Corporation. (2024, October 8). 丧尸世界-经典策略卡牌养成 on Steam. Steam Store.
- Valve Corporation. (2024, November 13). Plane Accident: Prologue on Steam. Steam Store.
- Valve Corporation. (2024, October 13). 防疫英雄 on Steam. Steam Store.
- Valve Corporation. (2024, September 10). Desperate ESCAPE on Steam. Steam Store.
- Valve Corporation. (2024, August 29). Distancing on Steam. Steam Store.