Your rescue pod crashes on Mars at night. Survive alone or with up to 3 friends in online co-op, reach the habitat, expand your base, weather deadly sandstorms – and find out who else is out there on this planet.

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Coming Soon To Early Access

The developers of this game intend to release as a work in progress, developing with the feedback of players.

Note: Games in Early Access are not complete and may or may not change further. If you are not excited to play this game in its current state, then you should wait to see if the game progresses further in development. Learn more

What the developers have to say:

Why Early Access?

“ARUS-1 is a one-person project, developed by me as a solo developer. The game combines exploration, survival and building a Mars colony in single-player and online co-op. I want to develop these systems together with the players. Early Access helps me use feedback on gameplay, usability, balancing, co-op and performance to guide further development.”

Approximately how long will this game be in Early Access?

“The Early Access launch is planned for 2027, after Steam Next Fest in February 2027. I aim to release the full version about six months after the Early Access launch. This is my current plan, not a guaranteed release date. The schedule may change based on development progress, testing and community feedback.”

How is the full version planned to differ from the Early Access version?

“For the full version, I plan to expand exploration, colony progression and the story, while refining existing systems. Other priorities include single-player and co-op stability, performance, usability and balancing. Feedback during Early Access will also help me decide which additions to prioritise.”

What is the current state of the Early Access version?

“ARUS-1 is still in development; the Early Access launch is planned for 2027. The current development build includes exploring ARUS Valley on foot and by rover, building and connecting colony buildings, managing power, water and oxygen, as well as research and missions. Single-player and online co-op for up to four players are implemented. A playable demo is planned for Steam Next Fest in February 2027. Content, balancing, usability and performance are still being refined. I will update this information to reflect the available scope before the Early Access launch.”

Will the game be priced differently during and after Early Access?

“I currently plan to keep the price unchanged during Early Access. The full version of ARUS-1 will cost more than the Early Access version. The lower Early Access price is my way of thanking players who support this one-person project during development and help improve the game with their feedback. If my pricing plans change, I will announce that in advance.”

How are you planning on involving the Community in your development process?

“I plan to collect feedback, bug reports and suggestions through the Steam discussions. Reports about co-op sessions, performance on different hardware and building larger colonies will be particularly useful. This feedback will help shape my priorities. I plan to share changes and development progress through Steam update posts.”
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This game is not yet available on Steam

Planned Release Date: April 2027

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About This Game

Crash-landed on Mars


Your rescue pod slams into the Martian surface in the middle of the night. Outside: dust, freezing cold and an oxygen supply that won't last forever. Fight your way to the habitat by rover – and turn an abandoned outpost into your survival base.

Solo or with up to 3 friends


ARUS-1 is built for online co-op. Split the work: one of you scouts with the rover, one expands the power grid, one keeps the drill running. Or face Mars on your own.

A world waiting to be explored


Beyond your base lies a vast, open Martian landscape: layered cliffs, mesas, craters and endless rock fields. On foot or by rover, you push ever deeper into uncharted territory – searching for resources, answers and whatever Mars is hiding.

Build. Supply. Survive.


  • Explore ARUS Valley on foot and by rover – cliffs, craters and rock fields with a realistic Martian look.
  • Build solar arrays, batteries, drills and refineries and connect them into working supply networks.
  • Extract water from ice and secure oxygen and power for your base.
  • Research new technologies and prepare your own satellite missions.

Research opens new paths


What begins as emergency life support grows into a true colony. Through research you unlock new buildings, facilities and technologies step by step – and with them, ever more ways to expand your base and venture further into Mars.

When the sandstorm hits


Mars doesn't forgive mistakes. Sandstorms black out the sky and cripple your solar fields. Now you have to decide which systems keep their power – and which don't.

You are not alone


A strange drone. Traces of a mission nobody was ever supposed to know about. ARUS, your base AI, has questions – and Mars has answers you won't like.

ARUS-1 is being developed by a solo developer in Unreal Engine 5. Add it to your wishlist so you don't miss any news.

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

Generative AI was used as a supporting tool during the development of ARUS-1. No content is generated by AI during gameplay.

System Requirements

Windows
macOS
    Minimum:
    • Requires a 64-bit processor and operating system
    • OS: Windows 10/11 (64-bit)
    • Processor: To be announced
    • Graphics: To be announced
    • DirectX: Version 12
    • Additional Notes: Final CPU, GPU, memory and storage requirements are still being tested and will be announced before release. Keyboard and mouse required.
    Recommended:
    • Requires a 64-bit processor and operating system
    • OS: Windows 10/11 (64-bit)
    • Processor: To be announced
    • Graphics: To be announced
    • DirectX: Version 12
    • Additional Notes: Final CPU, GPU, memory and storage requirements are still being tested and will be announced before release. Keyboard and mouse required.
    Minimum:
    • OS: macOS 26 or newer
    • Processor: To be announced
    • Graphics: To be announced
    • Additional Notes: Apple Silicon M3 or newer. Final requirements are still being tested and will be announced before release. Keyboard and mouse required.
    Recommended:
    • OS: macOS 26 or newer
    • Processor: To be announced
    • Graphics: To be announced
    • Additional Notes: Apple Silicon M3 or newer. Final requirements are still being tested and will be announced before release. Keyboard and mouse required.
* Starting February 15, 2024, the Steam Client will no longer support 32-bit games or macOS 10.14 or lower.