Free Mars Games on Steam
Steam currently has 320 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 1/14/2026.
Looking for more? Explore other lists such as:
- Best mars games on Steam
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- Best mars Linux games on Steam
- Free Steam games
- Most played Steam games
- Best rated Steam games
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 270 reviews on Steam. This breaks down to a total of 72 positive reviews and 198 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 284 reviews on Steam. This breaks down to a total of 143 positive reviews and 141 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 10,611 reviews on Steam. This breaks down to a total of 10,236 positive reviews and 375 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. Red Planet Rampage
A build-your-own-gun FPS! Play online, splitscreen or vs. AI in this goofy party game with over 600 unique weapons! Outbid your opponents and assemble the wildest weapon on Mars!
Red Planet Rampage has achieved a Player Score of 81, placing it in the #4 spot for the best free Mars games. Its score was calculated by analyzing a total of 59 reviews on Steam. This breaks down to a total of 55 positive reviews and 4 negative reviews — making it "Very 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 Red Planet Rampage on the Steam Deck.
| Release Date | 6/5/2024 |
| Developer | Hackerspace NTNU |
| Publisher | Hackerspace NTNU |
| Steam App Id | 2717710 |
5. 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 67, placing it in the #5 spot for the best free Mars games. Its score was calculated by analyzing a total of 75 reviews on Steam. This breaks down to a total of 55 positive reviews and 20 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 |
6. 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 #6 spot for the best free Mars games. Its score was calculated by analyzing a total of 854 reviews on Steam. This breaks down to a total of 821 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 |
7. Mars Power Industries: First Job
Is that your first job here at Mars Power Industries? Okay... Let's learn how to supply your tiny colony. Think of this like a puzzle. Sparkly crystals make power and your buildings need that sweet, sweet blue jazz. Black goo? Right, umm... Best to ign#-$!ore it. We do&!@ ONE #%& OF &#@ US %!&
Mars Power Industries: First Job has achieved a Player Score of 82, placing it in the #7 spot for the best free Mars games. Its score was calculated by analyzing a total of 69 reviews on Steam. This breaks down to a total of 65 positive reviews and 4 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 | 6/9/2020 |
| Franchise | Kurki.games |
| Developers | |
| Publishers | |
| Steam App Id | 1300560 |
8. Galaxy Splitter
Intergalactic combat with the vertical shooter
Galaxy Splitter has achieved a Player Score of 54, placing it in the #8 spot for the best free Mars games. Its score was calculated by analyzing a total of 34 reviews on Steam. This breaks down to a total of 19 positive reviews and 15 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 | 6/14/2022 |
| Developer | NeoBird |
| Publisher | upjers GmbH |
| Steam App Id | 1921080 |
9. Operation Satoshi [Early Version Alpha]
This is a game in development. It has been published just to get feedback from community. We are aware there will be defects and will do weekly updates. Feedback can be sent to [email protected]. A shooting RPG game to rescue a kidnapped scientist, Nakamoto Satoshi.
![Operation Satoshi [Early Version Alpha] banner](https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/2135380/header.jpg)
Operation Satoshi [Early Version Alpha] has achieved a Player Score of 54, placing it in the #9 spot for the best free Mars games. Its score was calculated by analyzing a total of 12 reviews on Steam. This breaks down to a total of 7 positive reviews and 5 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 | 11/8/2022 |
| Developer | MetaXSeed Games |
| Publisher | MetaXSeed Games |
| Steam App Id | 2135380 |
10. DOTS Survivors
DOTS Survivors is a casual action game where you play as an astronaut exploring the cosmos fending off hostile aliens along the way! As you progress through each run you can choose from a selection of futuristic weapons that can be leveled up to increase power!
DOTS Survivors 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 24 reviews on Steam. This breaks down to a total of 21 positive reviews and 3 negative reviews — making it "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.
| Release Date | 3/12/2025 |
| Developer | Turbo Makes Games |
| Publisher | Turbo Makes Games |
| Steam App Id | 3326810 |
More Free Mars Games
Explore even more rankings for the 33 best free Mars games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 121 | 12/3/2025 | 31 | Free | Steam Charts | |
| 45 | 12/12/2023 | 50 | Free | Steam Charts | |
| 15 | 12/19/2021 | 94 | Free | Steam Charts | |
| 2 | 6/5/2024 | 81 | Free | Steam Charts | |
| 2 | 9/30/2025 | 67 | Free | Steam Charts | |
| 2 | 5/25/2020 | 90 | Free | Steam Charts | |
| 2 | 6/9/2020 | 82 | Free | Steam Charts | |
| 1 | 6/14/2022 | 54 | Free | Steam Charts | |
| 1 | 11/8/2022 | 54 | Free | Steam Charts | |
| 1 | 3/12/2025 | 73 | Free | Steam Charts | |
 | 1 | 5/24/2021 | 74 | Free | Steam Charts | |
 | 1 | 1/18/2022 | 50 | Free | Steam Charts | |
 | 1 | 12/18/2020 | 65 | Free | Steam Charts | |
 | 1 | 2/21/2024 | 78 | Free | Steam Charts | |
 | 1 | 8/11/2022 | 48 | Free | Steam Charts | |
 | 1 | 10/9/2022 | 72 | Free | Steam Charts | |
 | 1 | 12/24/2020 | 47 | Free | Steam Charts | |
 | 1 | 11/27/2018 | 72 | Free | Steam Charts | |
 | 1 | 5/19/2021 | 55 | Free | Steam Charts | |
 | 1 | 5/18/2021 | 85 | 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, January 14). Steam Store. Steam Store.
- Valve Corporation. (2026, January 14). DarkOrbit Reloaded on Steam. Steam Store.
- Valve Corporation. (2026, January 8). Build Master: MarsVille on Steam. Steam Store.
- Valve Corporation. (2025, December 10). The Planet Crafter: Prologue on Steam. Steam Store.
- Valve Corporation. (2025, December 3). Red Planet Rampage on Steam. Steam Store.
- Valve Corporation. (2026, January 12). Doom 3: Phobos on Steam. Steam Store.
- Valve Corporation. (2025, November 18). Red Planet Farming on Steam. Steam Store.
- Valve Corporation. (2025, November 22). Mars Power Industries: First Job on Steam. Steam Store.
- Valve Corporation. (2026, January 7). Galaxy Splitter on Steam. Steam Store.
- Valve Corporation. (2025, December 1). Operation Satoshi [Early Version Alpha] on Steam. Steam Store.
- Valve Corporation. (2025, December 17). DOTS Survivors on Steam. Steam Store.