Free Alternate History Games on Steam

Steam currently has 1,905 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 10/20/2025.

Looking for more? Explore other lists such as:

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 banner

STALCRAFT: X holds the #1 spot for "best free Alternate History game on Steam" with a Player Score of 73. Its score was calculated by analyzing a total of 83,695 reviews on Steam. This breaks down to a total of 61,931 positive reviews and 21,764 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).

Release Date 12/9/2022
Developer EXBO
Publisher EXBO
Steam App Id 1818450

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 banner

Conqueror's Blade has achieved a Player Score of 67, placing it in the #2 spot for the best free Alternate History games. Its score was calculated by analyzing a total of 36,223 reviews on Steam. This breaks down to a total of 24,518 positive reviews and 11,705 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

3. Stay Out

Stay Out - is a MMORPG with shooter elements, based on spirit of “stalking” - an urban exploration, searching and exploring mysterious, abandoned and forgotten by humanity pieces of our planet.

Stay Out banner

Stay Out has achieved a Player Score of 66, placing it in the #3 spot for the best free Alternate History games. Its score was calculated by analyzing a total of 27,522 reviews on Steam. This breaks down to a total of 18,424 positive reviews and 9,098 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 Stay Out on the Steam Deck.

Release Date 11/27/2019
Developer MOBITECH LLC
Publisher MOBITECH LLC
Steam App Id 1180380

4. 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 banner

Reverse: 1999 has achieved a Player Score of 90, placing it in the #4 spot for the best free Alternate History games. Its score was calculated by analyzing a total of 3,184 reviews on Steam. This breaks down to a total of 2,983 positive reviews and 201 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 Reverse: 1999 on the Steam Deck (though some functionality may be limited).

Release Date 10/9/2024
Developer BLUEPOCH GAMES CO., LIMITED
Publisher BLUEPOCH GAMES CO., LIMITED
Steam App Id 3092660

5. SUPREMACY: 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.

SUPREMACY: WORLD WAR 3 banner

SUPREMACY: WORLD WAR 3 has achieved a Player Score of 74, placing it in the #5 spot for the best free Alternate History games. Its score was calculated by analyzing a total of 5,542 reviews on Steam. This breaks down to a total of 4,193 positive reviews and 1,349 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: WORLD WAR 3 on the Steam Deck.

Release Date 3/15/2018
Developer Dorado Games
Publisher Dorado Games
Steam App Id 784950

6. Supremacy: Call of War 1942

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!

Supremacy: Call of War 1942 banner

Supremacy: Call of War 1942 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 6,004 reviews on Steam. This breaks down to a total of 4,298 positive reviews and 1,706 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 Supremacy: Call of War 1942 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

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 banner

Supremacy: 1914 has achieved a Player Score of 72, placing it in the #7 spot for the best free Alternate History games. Its score was calculated by analyzing a total of 4,053 reviews on Steam. This breaks down to a total of 3,007 positive reviews and 1,046 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 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 banner

Vigor has achieved a Player Score of 46, placing it in the #8 spot for the best free Alternate History games. Its score was calculated by analyzing a total of 7,032 reviews on Steam. This breaks down to a total of 3,246 positive reviews and 3,786 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. Nova: Space Armada

An exceptional sci-fi strategy game based on space adventure as its core.

Nova: Space Armada banner

Nova: Space Armada has achieved a Player Score of 49, placing it in the #9 spot for the best free Alternate History games. Its score was calculated by analyzing a total of 169 reviews on Steam. This breaks down to a total of 82 positive reviews and 87 negative reviews — making it "Mixed" on Steam.

It can be played and ran on Windows systems. At the moment, it is possible to play Nova: Space Armada on the Steam Deck (though some functionality may be limited).

Release Date 10/22/2024
Developer STONE3 PTE. LTD.
Publisher STONE3 PTE. LTD.
Steam App Id 1108270

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 banner

Kingdom Heroes M has achieved a Player Score of 62, placing it in the #10 spot for the best free Alternate History games. Its score was calculated by analyzing a total of 224 reviews on Steam. This breaks down to a total of 145 positive reviews and 79 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 5/31/2023
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.

ImageName
Actions
STALCRAFT: X steam charts
15,240
12/9/2022
73
Free
Steam Charts
Conqueror's Blade steam charts
4,548
4/6/2020
67
Free
Steam Charts
Stay Out steam charts
1,643
11/27/2019
66
Free
Steam Charts
Reverse: 1999 steam charts
1,495
10/9/2024
90
Free
Steam Charts
SUPREMACY: WORLD WAR 3 steam charts
379
3/15/2018
74
Free
Steam Charts
Supremacy: Call of War 1942 steam charts
297
10/21/2017
70
Free
Steam Charts
Supremacy: 1914 steam charts
183
7/16/2019
72
Free
Steam Charts
Vigor steam charts
155
9/18/2024
46
Free
Steam Charts
Nova: Space Armada steam charts
150
10/22/2024
49
Free
Steam Charts
Kingdom Heroes M steam charts
126
5/31/2023
62
Free
Steam Charts
Metal Slug: Awakening steam charts
121
7/19/2024
66
Free
Steam Charts
Rogue Agent steam charts
113
4/30/2018
78
Free
Steam Charts
Armored Warfare steam charts
108
11/17/2017
64
Free
Steam Charts
Honkai Impact 3rd steam charts
89
10/21/2021
71
Free
Steam Charts
Atlantica Europe steam charts
61
5/20/2021
62
Free
Steam Charts
战法纪元 steam charts
58
10/19/2025
???
Free
Steam Charts
Nova Empire steam charts
56
5/26/2022
53
Free
Steam Charts
Destiny Online steam charts
36
3/30/2024
68
Free
Steam Charts
Romance of the Three Kingdoms Maker steam charts
30
12/9/2015
63
$4.99
Steam Charts
Iron Order 1919 steam charts
29
8/24/2022
66
Free
Steam Charts
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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, October 20). Steam Store. Steam Store.
  • Valve Corporation. (2025, October 20). STALCRAFT: X on Steam. Steam Store.
  • Valve Corporation. (2025, October 16). Conqueror's Blade on Steam. Steam Store.
  • Valve Corporation. (2025, October 12). Stay Out on Steam. Steam Store.
  • Valve Corporation. (2025, October 16). Reverse: 1999 on Steam. Steam Store.
  • Valve Corporation. (2025, October 8). SUPREMACY: WORLD WAR 3 on Steam. Steam Store.
  • Valve Corporation. (2025, October 9). Supremacy: Call of War 1942 on Steam. Steam Store.
  • Valve Corporation. (2025, August 12). Supremacy: 1914 on Steam. Steam Store.
  • Valve Corporation. (2025, October 20). Vigor on Steam. Steam Store.
  • Valve Corporation. (2025, October 18). Nova: Space Armada on Steam. Steam Store.
  • Valve Corporation. (2025, October 17). Kingdom Heroes M on Steam. Steam Store.

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