Free 4X Games on Steam
Steam currently has 866 4X 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 4X game rankings were last updated on 4/3/2026.
Looking for more? Explore other lists such as:
- Best 4x games on Steam
- Best 4x Steam Deck games
- Best 4x Steam games for Mac OS
- Best 4x Linux games on Steam
- Free Steam games
- Most played Steam games
- Best rated Steam games
1. Doomsday: Last Survivors
New tower defense gameplay! The apocalypse has come, and zombies are running amok. As the leader of the survivors, collect and use resources to defend their last shelter!
Doomsday: Last Survivors holds the #1 spot for "best free 4X game on Steam" with a Player Score of 64. Its score was calculated by analyzing a total of 851 reviews on Steam. This breaks down to a total of 563 positive reviews and 288 negative reviews — making it "Mixed" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play Doomsday: Last Survivors on the Steam Deck (though some functionality may be limited).
| Release Date | 6/26/2023 |
| Developer | IGG SINGAPORE PTE. LTD. |
| Publisher | IGG SINGAPORE PTE. LTD. |
| Steam App Id | 2439510 |
2. March of Empires
Claim your title as Shogun, Highland King, Northern Tsar or Desert Sultan and join this genre-redefining strategy game where you will wage constant war for real territorial conquest! Fortify your castle, fuel a massive army, and enter the ultimate fight for realm domination!
March of Empires has achieved a Player Score of 61, placing it in the #2 spot for the best free 4X games. Its score was calculated by analyzing a total of 1,812 reviews on Steam. This breaks down to a total of 1,135 positive reviews and 677 negative reviews — making it "Mixed" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play March of Empires on the Steam Deck (though some functionality may be limited).
3. Viking Rise
3rd Anniversary begins! Limited Hero and Hallowed Castle Skins debut—join us!
Viking Rise has achieved a Player Score of 68, placing it in the #3 spot for the best free 4X games. Its score was calculated by analyzing a total of 890 reviews on Steam. This breaks down to a total of 625 positive reviews and 265 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 Viking Rise on the Steam Deck (though some functionality may be limited).
| Release Date | 5/22/2024 |
| Developer | IGG SINGAPORE PTE. LTD. |
| Publisher | IGG SINGAPORE PTE. LTD. |
| Steam App Id | 2819520 |
4. Cividle
CivIdle is an idle/incremental game that allows you to lead your own civilization through thousands of years from ancient times to the modern era. Expand your territory, explore a vast tech tree, build various wonders, and trade with global players: empire must grow and numbers must go up!
Cividle has achieved a Player Score of 71, placing it in the #4 spot for the best free 4X games. Its score was calculated by analyzing a total of 990 reviews on Steam. This breaks down to a total of 736 positive reviews and 254 negative reviews — making it "Mostly Positive" on Steam.
It can be played and ran on Windows, Mac, and Linux systems. At the moment, it is possible to play Cividle on the Steam Deck (though some functionality may be limited).
| Release Date | 12/5/2025 |
| Franchise | Fish Pond Studio |
| Developers | |
| Publisher | Fish Pond Studio |
| Steam App Id | 2181940 |
5. Infinity Kingdom
Conquer the city, discover the Infinity! Infinity Kingdom is a cartoon-style mmo strategy game. As a resourceful lord, you must defend the land of Norheim against the evil gnomes while protecting yourself from other invading players!
Infinity Kingdom has achieved a Player Score of 55, placing it in the #5 spot for the best free 4X games. Its score was calculated by analyzing a total of 1,109 reviews on Steam. This breaks down to a total of 612 positive reviews and 497 negative reviews — making it "Mixed" on Steam.
It can be played and ran on both Windows and Mac systems. Valve has also verified it as playable on the Steam Deck and will run well.
| Release Date | 7/2/2021 |
| Developer | YOUZU (SINGAPORE) PTE. LTD. |
| Publisher | YOUZU (SINGAPORE) PTE. LTD. |
| Steam App Id | 1573360 |
6. War Planet Online: Global Conquest
Build your army, dominate your region and lead your alliance to conquer the globe!
War Planet Online: Global Conquest has achieved a Player Score of 61, placing it in the #6 spot for the best free 4X games. Its score was calculated by analyzing a total of 960 reviews on Steam. This breaks down to a total of 603 positive reviews and 357 negative reviews — making it "Mixed" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play War Planet Online: Global Conquest on the Steam Deck (though some functionality may be limited).
7. State of Survival
Survive the Zombies War in this RPG game of Apocalypse and Survival
State of Survival has achieved a Player Score of 56, placing it in the #7 spot for the best free 4X games. Its score was calculated by analyzing a total of 462 reviews on Steam. This breaks down to a total of 264 positive reviews and 198 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 |
8. Nova: Space Armada
An exceptional sci-fi strategy game based on space adventure as its core.
Nova: Space Armada has achieved a Player Score of 52, placing it in the #8 spot for the best free 4X games. Its score was calculated by analyzing a total of 226 reviews on Steam. This breaks down to a total of 118 positive reviews and 108 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 |
9. Hades' Star
A unique space strategy game where thousands of players participate in one shared galaxy.
Hades' Star has achieved a Player Score of 71, placing it in the #9 spot for the best free 4X games. Its score was calculated by analyzing a total of 2,646 reviews on Steam. This breaks down to a total of 1,923 positive reviews and 723 negative reviews — making it "Mostly Positive" on Steam.
It can be played and ran on both Windows and Mac systems. Valve has also verified it as playable on the Steam Deck and will run well.
| Release Date | 2/27/2019 |
| Developer | Parallel Space Inc |
| Publisher | Parallel Space Inc |
| Steam App Id | 755800 |
10. Pixel Starships
Pixel Starships is an FTL-style online sci-fi strategy builder and management game with a competitive PVP tournament. Set in the retro galaxy, your role is to explore space, meet aliens, and develop your ship, crew and AI. The game contains deep strategic and 4x elements. PSS is community-driven.
Pixel Starships has achieved a Player Score of 71, placing it in the #10 spot for the best free 4X games. Its score was calculated by analyzing a total of 2,926 reviews on Steam. This breaks down to a total of 2,136 positive reviews and 790 negative reviews — making it "Mostly Positive" on Steam.
It can be played and ran on Windows, Mac, and Linux systems. Valve has also verified it as playable on the Steam Deck and will run well.
More Free 4X Games
Explore even more rankings for the 76 best free 4X games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 610 | 6/26/2023 | 64 | Free | Steam Charts | |
| 564 | 12/11/2017 | 61 | Free | Steam Charts | |
| 557 | 5/22/2024 | 68 | Free | Steam Charts | |
| 524 | 12/5/2025 | 71 | Free | Steam Charts | |
| 394 | 7/2/2021 | 55 | Free | Steam Charts | |
| 156 | 12/19/2017 | 61 | Free | Steam Charts | |
| 134 | 8/2/2023 | 56 | Free | Steam Charts | |
| 117 | 10/22/2024 | 52 | Free | Steam Charts | |
| 107 | 2/27/2019 | 71 | Free | Steam Charts | |
| 102 | 5/23/2023 | 71 | Free | Steam Charts | |
 | 72 | 5/26/2022 | 53 | Free | Steam Charts | |
 | 66 | 1/15/2025 | 68 | Free | Steam Charts | |
 | 28 | 9/30/2025 | 49 | Free | Steam Charts | |
 | 24 | 4/6/2022 | 57 | Free | Steam Charts | |
 | 21 | 5/15/2025 | 64 | Free | Steam Charts | |
 | 17 | 8/27/2025 | 30 | Free | Steam Charts | |
 | 17 | 8/12/2019 | 61 | Free | Steam Charts | |
 | 12 | 9/10/2025 | 41 | Free | Steam Charts | |
 | 11 | 4/17/2023 | 79 | Free | Steam Charts | |
 | 9 | 9/21/2023 | 53 | 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 3). Steam Store. Steam Store.
- Valve Corporation. (2026, April 3). Doomsday: Last Survivors on Steam. Steam Store.
- Valve Corporation. (2026, April 2). March of Empires on Steam. Steam Store.
- Valve Corporation. (2026, April 17). Viking Rise on Steam. Steam Store.
- Valve Corporation. (2026, April 7). Cividle on Steam. Steam Store.
- Valve Corporation. (2026, April 16). Infinity Kingdom on Steam. Steam Store.
- Valve Corporation. (2026, April 2). War Planet Online: Global Conquest on Steam. Steam Store.
- Valve Corporation. (2026, April 15). State of Survival on Steam. Steam Store.
- Valve Corporation. (2026, April 2). Nova: Space Armada on Steam. Steam Store.
- Valve Corporation. (2026, April 2). Hades' Star on Steam. Steam Store.
- Valve Corporation. (2026, April 17). Pixel Starships on Steam. Steam Store.