Official specs from Steam

Biomutant system requirements

Minimum and recommended PC specs as listed by the developer on Steam.

Minimum

NoteRequires a 64-bit processor and operating system
OS *Windows 7/8.1/10 (64 bit)
ProcessorAMD FX-8350 or Intel Core i5-4690K or newer running at 3.5 GHz or higher
Memory8 GB RAM
Graphics4 GB Direct3D 11 capable video card - GeForce GTX 960 or Radeon R9 380
DirectXVersion 11
Storage25 GB available space
Sound CardIntegrated or dedicated DirectX 9 compatible soundcard
Additional NotesKeyboard, mouse and an internet connection for Steam.

Recommended

NoteRequires a 64-bit processor and operating system
OSWindows 10 (64bit)
ProcessorAMD Ryzen 5 1600 or Intel Core i7-6700K or newer running at 3.2 GHz or higher
Memory16 GB RAM
Graphics6 GB Direct3D 11 capable video card - GeForce GTX 1660Ti or Radeon RX 590
DirectXVersion 11
Storage25 GB available space
Sound CardIntegrated or dedicated DirectX 9 compatible soundcard
Additional NotesKeyboard, mouse and an internet connection for Steam

FAQ

What graphics card do I need for Biomutant?

Minimum: 4 GB Direct3D 11 capable video card - GeForce GTX 960 or Radeon R9 380. Recommended: 6 GB Direct3D 11 capable video card - GeForce GTX 1660Ti or Radeon RX 590.

How much RAM does Biomutant need?

Biomutant needs 8 GB RAM at minimum, 16 GB RAM recommended.

How big is Biomutant?

Biomutant requires 25 GB available space.

Does Biomutant run on Mac or Steam Deck/Linux?

There is no native macOS version. There is no native Linux build (Proton compatibility may vary).