DemoAction

Flat Mars Demo

Released Jul 6, 2026by Stromb InteractiveNo user reviews(Steam reviews)

Flat Mars is an action roguelike FPS. Shoot your way through millions of demons and tear through the terrain with an arsenal of futuristic weapons to claim powerful relics.

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About Flat Mars Demo

The Flat Mars Demo contains the opening missions of the campaign and full access to the level editor. This is an in development build so all game features are not yet in place.

A demented deity has taken up residency on Mars. Spacetime is warping and Mars has turned both flat and round. Your mission is to harvest its divine organs. But be prepared, a god has many minions. Fight through millions of mutant demons to claim the relics of the god.

Looping Mars

Explore a looping Mars and find its secrets and challenges. Complete them and be rewarded with powerful relics.

Hordes of Demons

Fight enormous swarms of demonic mutants while never slowing down. Jetpack above them, ski around them or soar through the sky to avoid their rage.

Total Destruction

Tear through the terrain with an arsenal of futuristic weapons. Burn through rock and flesh with screeching beam weapons. Fire mountain-rising grenades or enormous nukes that obliterate everything.

Game details

System requirements

Minimum

Minimum:
  • Requires a 64-bit processor and operating system
  • OS: Windows 10
  • Memory: 8 GB RAM
  • Graphics: Nvidia RTX 1060 6GB
  • DirectX: Version 12
  • Storage: 4 GB available space

Recommended

Recommended:
  • Requires a 64-bit processor and operating system
  • OS: Windows 11
  • Memory: 12 GB RAM
  • Graphics: Nvidia RTX 3060 6GB
  • DirectX: Version 12
  • Storage: 4 GB available space