Official specs from Steam

Mortal Shell 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 SP1 or newer
ProcessorIntel Core i5-4590 or AMD FX 8350
Memory8 GB RAM
GraphicsNVIDIA GTX 970 or AMD Radeon R9 290
Storage12 GB available space

Recommended

NoteRequires a 64-bit processor and operating system
OSWindows 10
ProcessorIntel Core i7 or AMD Ryzen 7
Memory16 GB RAM
GraphicsNVIDIA GTX 1070 or AMD Radeon RX Vega 56
Storage12 GB available space

FAQ

What graphics card do I need for Mortal Shell?

Minimum: NVIDIA GTX 970 or AMD Radeon R9 290. Recommended: NVIDIA GTX 1070 or AMD Radeon RX Vega 56.

How much RAM does Mortal Shell need?

Mortal Shell needs 8 GB RAM at minimum, 16 GB RAM recommended.

How big is Mortal Shell?

Mortal Shell requires 12 GB available space.

Does Mortal Shell run on Mac or Steam Deck/Linux?

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