Free Mars Games on Steam
Steam currently has 303 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 8/8/2025.
Looking for more? Explore other lists such as:
- Best mars games on Steam
- Best mars Steam Deck games
- Best mars Steam games for Mac OS
- 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 43. Its score was calculated by analyzing a total of 224 reviews on Steam. This breaks down to a total of 92 positive reviews and 132 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 10,567 reviews on Steam. This breaks down to a total of 10,199 positive reviews and 368 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. Senators Praetorians and Qualified Gladiators
Play alone or with your friends a gladiators game.
Senators Praetorians and Qualified Gladiators has achieved a Player Score of 47, placing it in the #3 spot for the best free Mars games. Its score was calculated by analyzing a total of 7 reviews on Steam. This breaks down to a total of 3 positive reviews and 4 negative reviews — making it "7 user reviews" 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 | 1/18/2022 |
| Developer | Creative Oven Studio Group |
| Publisher | Creative Oven Studio Group |
| Steam App Id | 1531650 |
4. 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 #4 spot for the best free Mars games. Its score was calculated by analyzing a total of 835 reviews on Steam. This breaks down to a total of 804 positive reviews and 31 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 |
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 84, placing it in the #5 spot for the best free Mars games. Its score was calculated by analyzing a total of 685 reviews on Steam. This breaks down to a total of 610 positive reviews and 75 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. 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. 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 70, placing it in the #7 spot for the best free Mars games. Its score was calculated by analyzing a total of 19 reviews on Steam. This breaks down to a total of 16 positive reviews and 3 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 Cyber Space Driver on the Steam Deck.
| Release Date | 8/21/2023 |
| Developers | |
| Publisher | Daniel Swonson |
| Steam App Id | 2542380 |
8. 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 62, placing it in the #8 spot for the best free Mars games. Its score was calculated by analyzing a total of 14 reviews on Steam. This breaks down to a total of 10 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 |
9. 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 81, placing it in the #9 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 60 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 |
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 28 reviews on Steam. This breaks down to a total of 24 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 30 best free Mars games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 43 | 12/12/2023 | 43 | Free | Steam Charts | |
| 8 | 12/19/2021 | 94 | Free | Steam Charts | |
| 2 | 1/18/2022 | 47 | Free | Steam Charts | |
| 2 | 5/25/2020 | 90 | Free | Steam Charts | |
| 1 | 10/23/2021 | 84 | Free | Steam Charts | |
| 1 | 1/30/2023 | 71 | Free | Steam Charts | |
| 1 | 8/21/2023 | 70 | Free | Steam Charts | |
| 1 | 9/14/2020 | 62 | Free | Steam Charts | |
| 1 | 6/9/2020 | 81 | Free | Steam Charts | |
| 1 | 12/13/2021 | 73 | Free | Steam Charts | |
 | 1 | 4/20/2024 | 41 | Free | Steam Charts | |
![Operation Satoshi [Early Version Alpha] steam charts](https://cdn.akamai.steamstatic.com/steam/apps/2135380/header.jpg) | 1 | 11/8/2022 | 52 | Free | Steam Charts | |
 | 1 | 10/9/2022 | 71 | Free | Steam Charts | |
 | 1 | 5/24/2021 | 73 | Free | Steam Charts | |
 | 1 | 5/19/2021 | 53 | Free | Steam Charts | |
 | 1 | 11/1/2021 | 62 | Free | Steam Charts | |
 | 1 | 2/21/2024 | 79 | Free | Steam Charts | |
 | 1 | 3/12/2025 | 76 | Free | Steam Charts | |
 | 1 | 8/10/2022 | 47 | Free | Steam Charts | |
 | 1 | 2/18/2022 | 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, August 8). Steam Store. Steam Store.
- Valve Corporation. (2025, August 8). Build Master: MarsVille on Steam. Steam Store.
- Valve Corporation. (2025, August 4). The Planet Crafter: Prologue on Steam. Steam Store.
- Valve Corporation. (2025, July 28). Senators Praetorians and Qualified Gladiators on Steam. Steam Store.
- Valve Corporation. (2025, April 25). Red Planet Farming on Steam. Steam Store.
- Valve Corporation. (2025, June 26). Terraformers: First steps on Mars on Steam. Steam Store.
- Valve Corporation. (2025, June 26). Space Mechanic Simulator: Prologue on Steam. Steam Store.
- Valve Corporation. (2025, July 23). Cyber Space Driver on Steam. Steam Store.
- Valve Corporation. (2025, August 8). Rover Mechanic Challenge - ERC Competition on Steam. Steam Store.
- Valve Corporation. (2025, June 30). Mars Power Industries: First Job on Steam. Steam Store.
- Valve Corporation. (2025, May 14). Yavi on Steam. Steam Store.