Free Diplomacy Games on Steam
Steam currently has 412 Diplomacy 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 Diplomacy game rankings were last updated on 10/16/2024.
Looking for more? Explore other lists such as:
- Best diplomacy games on Steam
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1. Crusader Kings II
Explore one of the defining periods in world history in an experience crafted by the masters of Grand Strategy.
Crusader Kings II holds the #1 spot for "best free Diplomacy game on Steam" with a Player Score of 89. Its score was calculated by analyzing a total of 72,078 reviews on Steam. This breaks down to a total of 65,292 positive reviews and 6,786 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 Crusader Kings II on the Steam Deck (though some functionality may be limited).
| Release Date | 2/14/2012 |
| Franchise | Crusader Kings Official |
| Developer | Paradox Development Studio |
| Publisher | Paradox Interactive |
| Steam App Id | 203770 |
2. Game of Thrones Winter is Coming
Game of Thrones Winter is Coming is a PC strategy game based on the HBO drama television series, officially licensed by Warner Bros. Interactive Entertainment under HBO, and developed and published by YOOZOO Games. Interactive Entertainment and HBO.
Game of Thrones Winter is Coming has achieved a Player Score of 59, placing it in the #2 spot for the best free Diplomacy games. Its score was calculated by analyzing a total of 2,477 reviews on Steam. This breaks down to a total of 1,498 positive reviews and 979 negative reviews — making it "Mixed" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play Game of Thrones Winter is Coming on the Steam Deck (though some functionality may be limited).
| Release Date | 11/14/2019 |
| Developer | YOUZU (SINGAPORE) PTE. LTD. |
| Publisher | YOUZU (SINGAPORE) PTE. LTD. |
| Steam App Id | 1105420 |
3. 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 76, placing it in the #3 spot for the best free Diplomacy games. Its score was calculated by analyzing a total of 4,793 reviews on Steam. This breaks down to a total of 3,726 positive reviews and 1,067 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 |
4. 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 #4 spot for the best free Diplomacy games. Its score was calculated by analyzing a total of 5,434 reviews on Steam. This breaks down to a total of 3,879 positive reviews and 1,555 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 |
5. 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 #5 spot for the best free Diplomacy games. Its score was calculated by analyzing a total of 3,590 reviews on Steam. This breaks down to a total of 2,701 positive reviews and 889 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 |
6. Shipping Manager
Create and manage your own shipping empire. Control every aspect from route creation to marketing to staff handling and beat other managers to top the leaderboards.
Shipping Manager has achieved a Player Score of 46, placing it in the #6 spot for the best free Diplomacy games. Its score was calculated by analyzing a total of 339 reviews on Steam. This breaks down to a total of 152 positive reviews and 187 negative reviews — making it "Mixed" on Steam.
It can be played and ran on both Windows and Linux systems. At the moment, it is possible to play Shipping Manager on the Steam Deck (though some functionality may be limited).
| Release Date | 9/18/2023 |
| Developer | Trophy Games |
| Publisher | Trophy Games |
| Steam App Id | 2445660 |
7. Idle Research
Idle Research is an addictive, resource management, incremental game with both idle and active playstyles. Research and craft colorful Flasks and Tubes to earn as much Energy as possible! Big numbers guaranteed.
Idle Research has achieved a Player Score of 82, placing it in the #7 spot for the best free Diplomacy games. Its score was calculated by analyzing a total of 1,578 reviews on Steam. This breaks down to a total of 1,347 positive reviews and 231 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 Idle Research on the Steam Deck (though some functionality may be limited).
| Release Date | 8/1/2022 |
| Developer | Considera Games LLC |
| Publisher | Considera Core LLC |
| Steam App Id | 1482860 |
8. Project Entropy
Welcome, commander, to Project Entropy- an ultimate Sci-Fi and role-playing game with battles in space. In this immersive MMO experience, you will command alien civilizations, conquer uncharted planets, and build Hero fleets.
Project Entropy has achieved a Player Score of 51, placing it in the #8 spot for the best free Diplomacy games. Its score was calculated by analyzing a total of 45 reviews on Steam. This breaks down to a total of 23 positive reviews and 22 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 | 4/17/2024 |
| Developer | FunPlus International AG |
| Publisher | FunPlus International AG |
| Steam App Id | 2806410 |
9. Reign of Guilds
Reign of Guilds is an indie old-school MMORPG where everyone influences other players and the game world. The game doesn't hold your hand, nor does it impose casual restrictions on players' actions. Here, everyone can find their path to power.
Reign of Guilds has achieved a Player Score of 63, placing it in the #9 spot for the best free Diplomacy games. Its score was calculated by analyzing a total of 753 reviews on Steam. This breaks down to a total of 490 positive reviews and 263 negative reviews — making it "Mixed" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play Reign of Guilds on the Steam Deck (though some functionality may be limited).
| Release Date | 4/4/2024 |
| Developer | Atlant Games ltd |
| Publisher | Atlant Games ltd |
| Steam App Id | 716350 |
10. X3: Farnham's Legacy
X3: Farnham's Legacy is a new game in the X3 space game series. TRADE, FIGHT, BUILD, THINK in a living and breathing universe, which incorporates a new storyline and yet more additions to the open, free-form gameplay that forms the core of all X series games.
X3: Farnham's Legacy has achieved a Player Score of 81, placing it in the #10 spot for the best free Diplomacy games. Its score was calculated by analyzing a total of 579 reviews on Steam. This breaks down to a total of 501 positive reviews and 78 negative reviews — making it "Very Positive" on Steam.
It can be played and ran on both Windows and Linux systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.
More Free Diplomacy Games
Explore even more rankings for the 45 best free Diplomacy games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 1,744 | 2/14/2012 | 89 | Free | Steam Charts | |
| 813 | 11/14/2019 | 59 | Free | Steam Charts | |
| 737 | 3/15/2018 | 76 | Free | Steam Charts | |
| 207 | 10/21/2017 | 70 | Free | Steam Charts | |
| 190 | 7/16/2019 | 73 | Free | Steam Charts | |
| 126 | 9/18/2023 | 46 | Free | Steam Charts | |
| 118 | 8/1/2022 | 82 | Free | Steam Charts | |
| 79 | 4/17/2024 | 51 | Free | Steam Charts | |
| 50 | 4/4/2024 | 63 | Free | Steam Charts | |
| 44 | 5/4/2021 | 81 | Free | Steam Charts | |
 | 32 | 2/15/2019 | 89 | Free | Steam Charts | |
 | 14 | 1/10/2024 | 76 | Free | Steam Charts | |
 | 12 | 6/12/2020 | 64 | Free | Steam Charts | |
 | 10 | 11/21/2024 | 64 | Free | Steam Charts | |
 | 8 | 10/6/2023 | 80 | Free | Steam Charts | |
 | 8 | 12/10/2015 | 63 | $9.99 | Steam Charts | |
 | 7 | 1/11/2017 | 64 | Free | Steam Charts | |
 | 6 | 2/24/2023 | 51 | Free | Steam Charts | |
 | 5 | 10/14/2024 | 82 | Free | Steam Charts | |
 | 4 | 5/10/2022 | 65 | 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 16). Steam Store. Steam Store.
- Valve Corporation. (2024, October 16). Crusader Kings II on Steam. Steam Store.
- Valve Corporation. (2024, November 22). Game of Thrones Winter is Coming on Steam. Steam Store.
- Valve Corporation. (2024, November 13). Conflict of Nations: World War 3 on Steam. Steam Store.
- Valve Corporation. (2024, November 7). Call of War: World War 2 on Steam. Steam Store.
- Valve Corporation. (2024, November 14). Supremacy 1914: World War 1 on Steam. Steam Store.
- Valve Corporation. (2024, November 24). Shipping Manager on Steam. Steam Store.
- Valve Corporation. (2024, November 16). Idle Research on Steam. Steam Store.
- Valve Corporation. (2024, November 16). Project Entropy on Steam. Steam Store.
- Valve Corporation. (2024, November 23). Reign of Guilds on Steam. Steam Store.
- Valve Corporation. (2024, November 21). X3: Farnham's Legacy on Steam. Steam Store.