Free Mars Games on Steam
Steam currently has 288 Mars 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 Mars game rankings were last updated on 4/25/2025.
Looking for more? Explore other lists such as:
- Best mars games on Steam
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- Free Steam games
- Most played Steam games
- Best rated Steam games
1. Build Master: MarsVille
Build Master: MarsVille is a city-building and strategy game that invites you to create your Martian colony with your engineering genius and building skills. Form alliances, trade resources, and conquer rival colonies. Embrace the challenge and become the ultimate Build Master on Mars!
Build Master: MarsVille holds the #1 spot for "best free Mars game on Steam" with a Player Score of 43. Its score was calculated by analyzing a total of 213 reviews on Steam. This breaks down to a total of 88 positive reviews and 125 negative reviews — making it "Mixed" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play Build Master: MarsVille on the Steam Deck (though some functionality may be limited).
| Release Date | 12/12/2023 |
| Developers | |
| Publisher | FIRST FUN HONG KONG LIMITED |
| Steam App Id | 2366120 |
2. The Planet Crafter: Prologue
Experience the first stages of terraforming an entire planet in this space survival open world terraforming crafting game prologue. Explore, survive, collect, build your base then create oxygen, heat and pressure to make an hostile planet livable for humanity.
The Planet Crafter: Prologue has achieved a Player Score of 94, placing it in the #2 spot for the best free Mars games. Its score was calculated by analyzing a total of 10,538 reviews on Steam. This breaks down to a total of 10,178 positive reviews and 360 negative reviews — making it "Overwhelmingly 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 | 12/19/2021 |
| Developer | Miju Games |
| Publisher | Miju Games |
| Steam App Id | 1830840 |
3. Terraformers: First steps on Mars
Terraformers: First Steps on Mars is a free prologue of Terraformers, featuring an exclusive challenge to lead humanity's first attempt at settling the Red Planet.
Terraformers: First steps on Mars has achieved a Player Score of 84, placing it in the #3 spot for the best free Mars games. Its score was calculated by analyzing a total of 684 reviews on Steam. This breaks down to a total of 611 positive reviews and 73 negative reviews — making it "Very Positive" on Steam.
It can be played and ran on Windows, Mac, and Linux systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.
| Release Date | 10/23/2021 |
| Developer | Asteroid Lab |
| Publishers | |
| Steam App Id | 1557040 |
4. Occupy Mars: Prologue (2020)
Occupy Mars: Prologue is an old introduction to the world of Occupy Mars in which you have to use your brain in order to survive. The Prologue tells a separate story in a closed location and shows a sneak-peek of the full game mechanics.
Occupy Mars: Prologue (2020) has achieved a Player Score of 75, placing it in the #4 spot for the best free Mars games. Its score was calculated by analyzing a total of 1,562 reviews on Steam. This breaks down to a total of 1,217 positive reviews and 345 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 Occupy Mars: Prologue (2020) on the Steam Deck (though some functionality may be limited).
| Release Date | 8/20/2020 |
| Franchise | Pyramid Games S.A. |
| Developer | ▲ Pyramid Games |
| Publishers | |
| Steam App Id | 1310520 |
5. Red Planet Farming
Become the first Agricultural Director of Mars in Red Planet Farming! This casual strategy game tasks players with producing enough food to feed a growing population of settlers on the red planet.
Red Planet Farming has achieved a Player Score of 90, placing it in the #5 spot for the best free Mars games. Its score was calculated by analyzing a total of 830 reviews on Steam. This breaks down to a total of 797 positive reviews and 33 negative reviews — making it "Overwhelmingly Positive" on Steam.
It can be played and ran on Windows, Mac, and Linux systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.
| Release Date | 5/25/2020 |
| Developers | |
| Publisher | Nina Demirjian |
| Steam App Id | 1288170 |
6. Space Mechanic Simulator: Prologue
Space Mechanic Simulator: Prologue is a story prelude to the full version, which will introduce you to the world of cosmic repairs, greedy corporations, and cutting-edge technology.
Space Mechanic Simulator: Prologue has achieved a Player Score of 71, placing it in the #6 spot for the best free Mars games. Its score was calculated by analyzing a total of 63 reviews on Steam. This breaks down to a total of 50 positive reviews and 13 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 Space Mechanic Simulator: Prologue on the Steam Deck (though some functionality may be limited).
| Release Date | 1/30/2023 |
| Franchise | Atomic Jelly |
| Developer | Atomic Jelly |
| Publishers | |
| Steam App Id | 1634280 |
7. Last Resort
Last Resort is a small co-op shooter in which you and up to 3 others defend humanity's first hotel on Mars against hostile aliens. Defend & power up generators, upgrade your weapons and gun down hordes of aliens to save the hotel!
Last Resort has achieved a Player Score of 56, placing it in the #7 spot for the best free Mars games. Its score was calculated by analyzing a total of 139 reviews on Steam. This breaks down to a total of 80 positive reviews and 59 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 | 6/28/2021 |
| Developer | Team Soupvision |
| Publisher | Breda University of Applied Sciences |
| Steam App Id | 1491650 |
8. Fast Finger Rule
Fast Finger Rule is a minimalistic battle planet duel simulator. To make precise shots you just need to click on your planet at right time. Game has 10+ planet shield types and 15+ planets of 3 different tiers.
Fast Finger Rule has achieved a Player Score of 62, placing it in the #8 spot for the best free Mars games. Its score was calculated by analyzing a total of 8 reviews on Steam. This breaks down to a total of 6 positive reviews and 2 negative reviews — making it "8 user reviews" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play Fast Finger Rule on the Steam Deck (though some functionality may be limited).
9. Cyber Space Driver
As this a real CyberPunk style game, this is... Endless, buggy, synthwavy, peace of junk art. Cyber Space Driver... Drive straight, that's it.
Cyber Space Driver has achieved a Player Score of 72, placing it in the #9 spot for the best free Mars games. Its score was calculated by analyzing a total of 16 reviews on Steam. This breaks down to a total of 14 positive reviews and 2 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 | 8/21/2023 |
| Developers | |
| Publisher | Daniel Swonson |
| Steam App Id | 2542380 |
10. Rover Mechanic Challenge - ERC Competition
𝗘𝗥𝗖 𝗥𝗼𝘃𝗲𝗿 𝗠𝗲𝗰𝗵𝗮𝗻𝗶𝗰 𝗖𝗵𝗮𝗹𝗹𝗲𝗻𝗴𝗲 is an e-tournament based on the world's only simulator for repairing Mars Rovers. Take part in solving challenging tasks and become the master of leader board.
Rover Mechanic Challenge - ERC Competition has achieved a Player Score of 65, placing it in the #10 spot for the best free Mars games. Its score was calculated by analyzing a total of 13 reviews on Steam. This breaks down to a total of 10 positive reviews and 3 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 | 9/14/2020 |
| Developers | |
| Publishers | |
| Steam App Id | 1368970 |
More Free Mars Games
Explore even more rankings for the 31 best free Mars games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 74 | 12/12/2023 | 43 | Free | Steam Charts | |
| 9 | 12/19/2021 | 94 | Free | Steam Charts | |
| 2 | 10/23/2021 | 84 | Free | Steam Charts | |
| 2 | 8/20/2020 | 75 | Free | Steam Charts | |
| 1 | 5/25/2020 | 90 | Free | Steam Charts | |
| 1 | 1/30/2023 | 71 | Free | Steam Charts | |
| 1 | 6/28/2021 | 56 | Free | Steam Charts | |
| 1 | 11/1/2021 | 62 | Free | Steam Charts | |
| 1 | 8/21/2023 | 72 | Free | Steam Charts | |
| 1 | 9/14/2020 | 65 | Free | Steam Charts | |
 | 1 | 4/20/2024 | 41 | Free | Steam Charts | |
 | 1 | 5/18/2021 | 85 | Free | Steam Charts | |
 | 1 | 9/16/2024 | 71 | Free | Steam Charts | |
 | 1 | 3/12/2025 | 74 | Free | Steam Charts | |
 | 1 | 12/13/2021 | 72 | Free | Steam Charts | |
 | 1 | 10/9/2022 | 71 | Free | Steam Charts | |
 | 1 | 6/9/2020 | 81 | Free | Steam Charts | |
 | 1 | 12/24/2020 | 48 | Free | Steam Charts | |
 | 1 | 5/19/2021 | 55 | Free | Steam Charts | |
 | 1 | 5/24/2021 | 72 | 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 25). Steam Store. Steam Store.
- Valve Corporation. (2025, April 25). Build Master: MarsVille on Steam. Steam Store.
- Valve Corporation. (2025, March 21). The Planet Crafter: Prologue on Steam. Steam Store.
- Valve Corporation. (2025, April 24). Terraformers: First steps on Mars on Steam. Steam Store.
- Valve Corporation. (2025, March 13). Occupy Mars: Prologue (2020) on Steam. Steam Store.
- Valve Corporation. (2025, April 25). Red Planet Farming on Steam. Steam Store.
- Valve Corporation. (2025, March 29). Space Mechanic Simulator: Prologue on Steam. Steam Store.
- Valve Corporation. (2025, April 24). Last Resort on Steam. Steam Store.
- Valve Corporation. (2025, March 14). Fast Finger Rule on Steam. Steam Store.
- Valve Corporation. (2025, April 17). Cyber Space Driver on Steam. Steam Store.
- Valve Corporation. (2025, April 7). Rover Mechanic Challenge - ERC Competition on Steam. Steam Store.