Official specs from Steam

Amnesia: The Bunker 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 / 10, 64-bits
ProcessorCore i3 / AMD FX 2.4Ghz
Memory4 GB RAM
GraphicsOpenGL 4.0, Nvidia GTX 460 / AMD Radeon HD 5750 / Intel HD 630
Storage35 GB available space

Recommended

NoteRequires a 64-bit processor and operating system
OS *Windows 7 / 8 / 10, 64-bits
ProcessorCore i5 / Ryzen 5
Memory8 GB RAM
GraphicsOpenGL 4.3, Nvidia GTX 970 / AMD Radeon RX 5600 XT / Intel Xe-HPG
Storage35 GB available space

FAQ

What graphics card do I need for Amnesia: The Bunker?

Minimum: OpenGL 4.0, Nvidia GTX 460 / AMD Radeon HD 5750 / Intel HD 630. Recommended: OpenGL 4.3, Nvidia GTX 970 / AMD Radeon RX 5600 XT / Intel Xe-HPG.

How much RAM does Amnesia: The Bunker need?

Amnesia: The Bunker needs 4 GB RAM at minimum, 8 GB RAM recommended.

How big is Amnesia: The Bunker?

Amnesia: The Bunker requires 35 GB available space.

Does Amnesia: The Bunker run on Mac or Steam Deck/Linux?

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