Free Mars Games on Steam
Steam currently has 319 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 12/22/2025.
Looking for more? Explore other lists such as:
- Best mars games on Steam
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- Free Steam games
- Most played Steam games
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1. DarkOrbit Reloaded
Dark Orbit is a free-2-play space MMO where three companies battle for galactic domination. Customize ships, trade resources, fight aliens and uncover a grand conspiracy on your epic cosmic journey. Thrilling PvP and PvE missions await! Will you lead your faction beyond the final frontier?
DarkOrbit Reloaded holds the #1 spot for "best free Mars game on Steam" with a Player Score of 31. Its score was calculated by analyzing a total of 226 reviews on Steam. This breaks down to a total of 59 positive reviews and 167 negative reviews — making it "Mostly Negative" 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 | 12/3/2025 |
| Developer | Bigpoint GmbH |
| Publisher | Bigpoint GmbH |
| Steam App Id | 4054110 |
2. 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 has achieved a Player Score of 50, placing it in the #2 spot for the best free Mars games. Its score was calculated by analyzing a total of 281 reviews on Steam. This breaks down to a total of 142 positive reviews and 139 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 |
3. 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 #3 spot for the best free Mars games. Its score was calculated by analyzing a total of 10,595 reviews on Steam. This breaks down to a total of 10,221 positive reviews and 374 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 |
4. Doom 3: Phobos
Waking up on Mars with no memory and a wound you can’t explain, you begin a desperate search for answers - about yourself, your past, and the catastrophe looming over two worlds.
Doom 3: Phobos 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 64 reviews on Steam. This breaks down to a total of 49 positive reviews and 15 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 | 9/30/2025 |
| Developer | Team Future |
| Publisher | Team Future |
| Steam App Id | 3978420 |
5. 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 83, placing it in the #5 spot for the best free Mars games. Its score was calculated by analyzing a total of 692 reviews on Steam. This breaks down to a total of 614 positive reviews and 78 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 |
6. Farlanders: Prologue
Prepare for your journey to Mars by building and managing a colony within the safety of Earth’s atmosphere. Hone your abilities to create a thriving community, terraform the land to suit your needs, and prove your capability for a larger mission. Get ready to launch in this prologue to Farlanders.
Farlanders: Prologue has achieved a Player Score of 85, placing it in the #6 spot for the best free Mars games. Its score was calculated by analyzing a total of 285 reviews on Steam. This breaks down to a total of 265 positive reviews and 20 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 Farlanders: Prologue on the Steam Deck (though some functionality may be limited).
| Release Date | 5/18/2021 |
| Franchise | Andriy Bychkovskyi |
| Developer | Andriy Bychkovskyi |
| Publishers | |
| Steam App Id | 1460540 |
7. Diluvian Ultra: Awakening
Diluvian Ultra: Awakening shows a never-before seen part of Diluvian Ultra's story, preceding the events of the main game. As a young Diluvian Knight, stage a heroic defense against insurmountable odds, in this single-player FPS with a retro aesthetic and fast-paced, strategic combat.
Diluvian Ultra: Awakening 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 161 reviews on Steam. This breaks down to a total of 120 positive reviews and 41 negative reviews — making it "Mostly Positive" on Steam.
It can be played and ran on Windows systems. At the moment, it is not possible to play or run Diluvian Ultra: Awakening on the Steam Deck.
| Release Date | 9/16/2024 |
| Franchise | Fulqrum Publishing |
| Developer | Cresthelm Studios |
| Publisher | Fulqrum Publishing |
| Steam App Id | 3225260 |
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 64, placing it in the #8 spot for the best free Mars games. Its score was calculated by analyzing a total of 9 reviews on Steam. This breaks down to a total of 7 positive reviews and 2 negative reviews — making it "9 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. 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 64, 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 12 positive reviews and 4 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 |
10. Yavi
A retro styled 2D Sci-Fi RPG including robot fighting, hilarious dialogues and a great story that will make you laugh and cry - if you're a sensitive person (which is nothing to be ashamed of!).
Yavi has achieved a Player Score of 73, placing it in the #10 spot for the best free Mars games. Its score was calculated by analyzing a total of 29 reviews on Steam. This breaks down to a total of 25 positive reviews and 4 negative reviews — making it "Positive" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play Yavi on the Steam Deck (though some functionality may be limited).
More Free Mars Games
Explore even more rankings for the 33 best free Mars games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 94 | 12/3/2025 | 31 | Free | Steam Charts | |
| 57 | 12/12/2023 | 50 | Free | Steam Charts | |
| 7 | 12/19/2021 | 94 | Free | Steam Charts | |
| 3 | 9/30/2025 | 69 | Free | Steam Charts | |
| 2 | 10/23/2021 | 83 | Free | Steam Charts | |
| 2 | 5/18/2021 | 85 | Free | Steam Charts | |
| 2 | 9/16/2024 | 69 | Free | Steam Charts | |
| 1 | 11/1/2021 | 64 | Free | Steam Charts | |
| 1 | 9/14/2020 | 64 | Free | Steam Charts | |
| 1 | 12/13/2021 | 73 | Free | Steam Charts | |
 | 1 | 6/9/2020 | 82 | Free | Steam Charts | |
 | 1 | 4/21/2023 | 69 | Free | Steam Charts | |
![Operation Satoshi [Early Version Alpha] steam charts](https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2135380/header.jpg) | 1 | 11/8/2022 | 54 | Free | Steam Charts | |
 | 1 | 1/18/2022 | 50 | Free | Steam Charts | |
 | 1 | 8/11/2022 | 48 | Free | Steam Charts | |
 | 1 | 2/18/2022 | 55 | Free | Steam Charts | |
 | 1 | 3/12/2025 | 73 | Free | Steam Charts | |
 | 1 | 5/24/2021 | 74 | Free | Steam Charts | |
 | 1 | 4/19/2024 | 40 | Free | Steam Charts | |
 | 1 | 6/28/2021 | 56 | 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, December 22). Steam Store. Steam Store.
- Valve Corporation. (2025, December 22). DarkOrbit Reloaded on Steam. Steam Store.
- Valve Corporation. (2025, December 19). Build Master: MarsVille on Steam. Steam Store.
- Valve Corporation. (2025, December 10). The Planet Crafter: Prologue on Steam. Steam Store.
- Valve Corporation. (2025, December 24). Doom 3: Phobos on Steam. Steam Store.
- Valve Corporation. (2025, October 2). Terraformers: First steps on Mars on Steam. Steam Store.
- Valve Corporation. (2025, October 3). Farlanders: Prologue on Steam. Steam Store.
- Valve Corporation. (2025, November 23). Diluvian Ultra: Awakening on Steam. Steam Store.
- Valve Corporation. (2025, September 27). Fast Finger Rule on Steam. Steam Store.
- Valve Corporation. (2025, November 17). Rover Mechanic Challenge - ERC Competition on Steam. Steam Store.
- Valve Corporation. (2025, November 26). Yavi on Steam. Steam Store.