Free Alternate History Games on Steam
Steam currently has 1,684 Alternate History 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 Alternate History game rankings were last updated on 4/14/2025.
Looking for more? Explore other lists such as:
- Best alternate history games on Steam
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- Best alternate history Linux games on Steam
- Free Steam games
- Most played Steam games
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1. STALCRAFT: X
STALCRAFT: X is the largest open-world online game in the Chernobyl Exclusion Zone. Explore the world full of mutants and anomalies alone or with friends — unforgettable emotions guaranteed.
STALCRAFT: X holds the #1 spot for "best free Alternate History game on Steam" with a Player Score of 75. Its score was calculated by analyzing a total of 74,661 reviews on Steam. This breaks down to a total of 57,000 positive reviews and 17,661 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 STALCRAFT: X on the Steam Deck (though some functionality may be limited).
2. 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 68, placing it in the #2 spot for the best free Alternate History games. Its score was calculated by analyzing a total of 33,648 reviews on Steam. This breaks down to a total of 23,043 positive reviews and 10,605 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 |
| Publisher | Poros Interactive |
| Steam App Id | 835570 |
3. Reverse: 1999
Reverse: 1999 is a 20th Century Time-Travel Strategic RPG developed by Bluepoch. As the Timekeeper, the observer of eras, you will embark on a journey across time and space, from the Roaring '20s to the turn of the millennium, uncovering the truth about the "Storm" and the mystery of the year 1999.
Reverse: 1999 has achieved a Player Score of 89, placing it in the #3 spot for the best free Alternate History games. Its score was calculated by analyzing a total of 1,904 reviews on Steam. This breaks down to a total of 1,789 positive reviews and 115 negative reviews — making it "Very Positive" on Steam.
It can be played and ran on Windows systems. At the moment, it is not possible to play or run Reverse: 1999 on the Steam Deck.
| Release Date | 10/9/2024 |
| Developer | BLUEPOCH GAMES CO., LIMITED |
| Publisher | BLUEPOCH GAMES CO., LIMITED |
| Steam App Id | 3092660 |
4. Metal Slug: Awakening
Metal Slug: Awakening continues the classic gameplay loved by fans, with exciting new features like World Adventure, 3-player Team-up, and Roguelike challenges. Join forces with your friends online to take on powerful bosses anytime, anywhere!
Metal Slug: Awakening has achieved a Player Score of 66, placing it in the #4 spot for the best free Alternate History games. Its score was calculated by analyzing a total of 3,117 reviews on Steam. This breaks down to a total of 2,109 positive reviews and 1,008 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 Metal Slug: Awakening on the Steam Deck.
| Release Date | 7/19/2024 |
| Developer | Tencent |
| Publisher | HaoPlay Limited |
| Steam App Id | 2963870 |
5. Conflict of Nations: World War 3
This Long Term Strategy Game lets you take control of the armed forces of your nation. Become responsible for its military expansion, technological research and economic development. Form alliances and wage total war for global dominance on the battlefields of World War 3.
Conflict of Nations: World War 3 has achieved a Player Score of 75, placing it in the #5 spot for the best free Alternate History games. Its score was calculated by analyzing a total of 5,118 reviews on Steam. This breaks down to a total of 3,969 positive reviews and 1,149 negative reviews — making it "Mostly Positive" on Steam.
It can be played and ran on both Windows and Mac systems. At the moment, it is not possible to play or run Conflict of Nations: World War 3 on the Steam Deck.
| Release Date | 3/15/2018 |
| Developer | Dorado Games |
| Publisher | Dorado Games |
| Steam App Id | 784950 |
6. Call of War: World War 2
Take over the control of one of the mighty nations during the times of World War 2 in this persisting long-term strategy game. Conquer provinces, forge alliances and build up your economy in real-time. Research top secret weapons of World War 2 and become the one true superpower!
Call of War: World War 2 has achieved a Player Score of 70, placing it in the #6 spot for the best free Alternate History games. Its score was calculated by analyzing a total of 5,735 reviews on Steam. This breaks down to a total of 4,097 positive reviews and 1,638 negative reviews — making it "Mostly Positive" on Steam.
It can be played and ran on both Windows and Mac systems. At the moment, it is possible to play Call of War: World War 2 on the Steam Deck (though some functionality may be limited).
| Release Date | 10/21/2017 |
| Developer | Bytro Labs GmbH |
| Publisher | Bytro Labs GmbH |
| Steam App Id | 672680 |
7. Supremacy 1914: World War 1
Take over the control of one of the mighty nations during the times of World War 1 in the biggest WW1 strategy game of all time. Conquer provinces, forge alliances and build up your economy in real-time on persistent maps. Build experimental weapons of World War 1 and become the one true superpower!
Supremacy 1914: World War 1 has achieved a Player Score of 73, placing it in the #7 spot for the best free Alternate History games. Its score was calculated by analyzing a total of 3,789 reviews on Steam. This breaks down to a total of 2,840 positive reviews and 949 negative reviews — making it "Mostly Positive" on Steam.
It can be played and ran on both Windows and Mac systems. At the moment, it is not possible to play or run Supremacy 1914: World War 1 on the Steam Deck.
| Release Date | 7/16/2019 |
| Developer | Bytro Labs GmbH |
| Publisher | Bytro Labs GmbH |
| Steam App Id | 979920 |
8. Vigor
Outlive the apocalypse! Dive into intense Encounters and extract the most valuable spoils the Outlands have to offer! Loot, shoot, and build to become the absolute Outlander and explore the landscape of a post-war Norway in Vigor, a free-to-play looter shooter.
Vigor has achieved a Player Score of 47, placing it in the #8 spot for the best free Alternate History games. Its score was calculated by analyzing a total of 6,343 reviews on Steam. This breaks down to a total of 2,995 positive reviews and 3,348 negative reviews — making it "Mixed" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play Vigor on the Steam Deck (though some functionality may be limited).
| Release Date | 9/18/2024 |
| Franchise | Bohemia Interactive |
| Developer | Bohemia Interactive |
| Publisher | Bohemia Interactive |
| Steam App Id | 2818260 |
9. Honkai Impact 3rd
Honkai Impact 3rd - Ultimate anime action made real! HD cel-shading, infinite combos, explosive feedback... Experience next-gen real-time action! An original tale told across media, immersive stage events, star-studded voice cast... Become part of the legend!
Honkai Impact 3rd has achieved a Player Score of 71, placing it in the #9 spot for the best free Alternate History games. Its score was calculated by analyzing a total of 9,687 reviews on Steam. This breaks down to a total of 7,062 positive reviews and 2,625 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 Honkai Impact 3rd on the Steam Deck.
| Release Date | 10/21/2021 |
| Developers | |
| Publishers | |
| Steam App Id | 1671200 |
10. Kingdom Heroes M
歷經20年的感動，給你最原汁原味的《三國群英傳M》
Kingdom Heroes M has achieved a Player Score of 63, placing it in the #10 spot for the best free Alternate History games. Its score was calculated by analyzing a total of 215 reviews on Steam. This breaks down to a total of 143 positive reviews and 72 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.
| Release Date | 5/30/2023 |
| Franchise | USERJOY |
| Developer | USERJOY Technology Co.,Ltd. |
| Publisher | USERJOY Technology Co.,Ltd. |
| Steam App Id | 2321430 |
More Free Alternate History Games
Explore even more rankings for the 100 best free Alternate History games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 2,938 | 12/9/2022 | 75 | Free | Steam Charts | |
| 2,042 | 4/6/2020 | 68 | Free | Steam Charts | |
| 521 | 10/9/2024 | 89 | Free | Steam Charts | |
| 336 | 7/19/2024 | 66 | Free | Steam Charts | |
| 334 | 3/15/2018 | 75 | Free | Steam Charts | |
| 296 | 10/21/2017 | 70 | Free | Steam Charts | |
| 289 | 7/16/2019 | 73 | Free | Steam Charts | |
| 150 | 9/18/2024 | 47 | Free | Steam Charts | |
| 94 | 10/21/2021 | 71 | Free | Steam Charts | |
| 89 | 5/30/2023 | 63 | Free | Steam Charts | |
 | 86 | 10/22/2024 | 51 | Free | Steam Charts | |
 | 71 | 11/17/2017 | 64 | Free | Steam Charts | |
 | 40 | 5/20/2021 | 62 | Free | Steam Charts | |
 | 35 | 5/26/2022 | 53 | Free | Steam Charts | |
 | 31 | 11/9/2024 | 81 | Free | Steam Charts | |
 | 26 | 1/11/2023 | 67 | Free | Steam Charts | |
 | 22 | 8/24/2022 | 67 | Free | Steam Charts | |
 | 19 | 3/30/2024 | 70 | Free | Steam Charts | |
 | 15 | 3/11/2022 | 58 | Free | Steam Charts | |
 | 15 | 4/13/2023 | 62 | 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, April 14). Steam Store. Steam Store.
- Valve Corporation. (2025, April 14). STALCRAFT: X on Steam. Steam Store.
- Valve Corporation. (2025, April 14). Conqueror's Blade on Steam. Steam Store.
- Valve Corporation. (2025, April 15). Reverse: 1999 on Steam. Steam Store.
- Valve Corporation. (2025, April 15). Metal Slug: Awakening on Steam. Steam Store.
- Valve Corporation. (2025, March 13). Conflict of Nations: World War 3 on Steam. Steam Store.
- Valve Corporation. (2025, March 22). Call of War: World War 2 on Steam. Steam Store.
- Valve Corporation. (2025, April 3). Supremacy 1914: World War 1 on Steam. Steam Store.
- Valve Corporation. (2025, April 14). Vigor on Steam. Steam Store.
- Valve Corporation. (2025, April 12). Honkai Impact 3rd on Steam. Steam Store.
- Valve Corporation. (2025, March 31). Kingdom Heroes M on Steam. Steam Store.