Free Mars Games on Steam
Steam currently has 286 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 4/9/2025.
Looking for more? Explore other lists such as:
- Best mars games on Steam
- Best mars Steam Deck games
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- Best mars Linux games on Steam
- 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 44. Its score was calculated by analyzing a total of 202 reviews on Steam. This breaks down to a total of 87 positive reviews and 115 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 10,520 reviews on Steam. This breaks down to a total of 10,165 positive reviews and 355 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. Project Eagle: A 3D Interactive Mars Base
An interactive art demo that showcases what a future base on Mars could look like. Project Eagle isn't a game - but an exploration of mankind's possible future.
Project Eagle: A 3D Interactive Mars Base has achieved a Player Score of 72, placing it in the #3 spot for the best free Mars games. Its score was calculated by analyzing a total of 540 reviews on Steam. This breaks down to a total of 408 positive reviews and 132 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 | 11/27/2018 |
| Franchise | Blackbird Interactive (BBI) |
| Developer | Blackbird Interactive |
| Publisher | Blackbird Interactive |
| Steam App Id | 224000 |
4. Rover Mechanic Simulator: Training Day
Welcome to the Training Day on Mars! In this free version of our advanced simulator you will learn everything you need to know about repairing and maintaining Mars Rovers.
Rover Mechanic Simulator: Training Day has achieved a Player Score of 69, placing it in the #4 spot for the best free Mars games. Its score was calculated by analyzing a total of 101 reviews on Steam. This breaks down to a total of 76 positive reviews and 25 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 | 5/21/2020 |
| Franchise | Pyramid Games S.A. |
| Developer | ▲ Pyramid Games |
| Publishers | |
| Steam App Id | 1314160 |
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 826 reviews on Steam. This breaks down to a total of 793 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 62 reviews on Steam. This breaks down to a total of 49 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. Quit Smoking VR Therapist
Do you want to quit smoking? This application can help you to eliminate and erase your taste for a cigarette. Based on the latest knowledge in the field of psychology, neuroscience and hypnotherapy.
Quit Smoking VR Therapist has achieved a Player Score of 69, placing it in the #7 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 11 positive reviews and 2 negative reviews — making it "Positive" on Steam.
It can be played and ran on Windows systems. At the moment, it is not possible to play or run Quit Smoking VR Therapist on the Steam Deck.
8. 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 #8 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 |
9. 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 #9 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).
10. 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 #10 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 |
More Free Mars Games
Explore even more rankings for the 31 best free Mars games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 55 | 12/12/2023 | 44 | Free | Steam Charts | |
| 13 | 12/19/2021 | 94 | Free | Steam Charts | |
| 1 | 11/27/2018 | 72 | Free | Steam Charts | |
| 1 | 5/21/2020 | 69 | Free | Steam Charts | |
| 1 | 5/25/2020 | 90 | Free | Steam Charts | |
| 1 | 1/30/2023 | 71 | Free | Steam Charts | |
| 1 | 4/21/2023 | 69 | 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 | 70 | Free | Steam Charts | |
 | 1 | 3/12/2025 | 72 | 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 |
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 9). Steam Store. Steam Store.
- Valve Corporation. (2025, April 9). Build Master: MarsVille on Steam. Steam Store.
- Valve Corporation. (2025, March 21). The Planet Crafter: Prologue on Steam. Steam Store.
- Valve Corporation. (2025, March 14). Project Eagle: A 3D Interactive Mars Base on Steam. Steam Store.
- Valve Corporation. (2025, March 13). Rover Mechanic Simulator: Training Day on Steam. Steam Store.
- Valve Corporation. (2025, April 3). Red Planet Farming on Steam. Steam Store.
- Valve Corporation. (2025, March 29). Space Mechanic Simulator: Prologue on Steam. Steam Store.
- Valve Corporation. (2025, March 24). Quit Smoking VR Therapist on Steam. Steam Store.
- Valve Corporation. (2025, March 3). Last Resort on Steam. Steam Store.
- Valve Corporation. (2025, March 14). Fast Finger Rule on Steam. Steam Store.
- Valve Corporation. (2025, February 25). Cyber Space Driver on Steam. Steam Store.