Official specs from Steam

Blair Witch 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
ProcessorIntel Core i3-3220 (3.30 GHz) / AMD A8-7600 (3.1 GHz)
Memory4 GB RAM
GraphicsGeForce GTX 750 Ti / AMD Radeon R7 265
DirectXVersion 11
Storage16 GB available space
Sound CardDirectX® 11.0 compatible
Additional NotesRequires a 64-bit processor and operating system

Recommended

NoteRequires a 64-bit processor and operating system
OSWindows 10
ProcessorIntel Core i5-6500 (3.2 GHz) / AMD Ryzen 5 1600
Memory8 GB RAM
GraphicsGeForce GTX 1070 / AMD Radeon RX 590
DirectXVersion 11
Storage16 GB available space
Sound CardDirectX® 11.0 compatible
Additional NotesRequires a 64-bit processor and operating system

FAQ

What graphics card do I need for Blair Witch?

Minimum: GeForce GTX 750 Ti / AMD Radeon R7 265. Recommended: GeForce GTX 1070 / AMD Radeon RX 590.

How much RAM does Blair Witch need?

Blair Witch needs 4 GB RAM at minimum, 8 GB RAM recommended.

How big is Blair Witch?

Blair Witch requires 16 GB available space.

Does Blair Witch run on Mac or Steam Deck/Linux?

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