Official specs from Steam

Cairn system requirements

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

Minimum

NoteRequires a 64-bit processor and operating system
OSWindows 10
ProcessorIntel Core i7-6700 (4 * 3400), AMD Ryzen 5 1500X (4 * 3500) or equivalent
Memory8 GB RAM
GraphicsGeForce GTX 1050 Ti (4096 MB), Radeon RX 570 (8192 MB)
Storage10 GB available space
Additional NotesSSD required. Controller recommended.

Recommended

NoteRequires a 64-bit processor and operating system
OSWindows 10
ProcessorIntel Core i7-10700 (8 * 2900), AMD Ryzen 7 3700X (8 * 3600) or equivalent
Memory8 GB RAM
GraphicsGeforce RTX 2060 Super (6144 MB), Radeon RX 5700 (8192 MB)
Storage10 GB available space
Additional NotesSSD required. Controller recommended.

FAQ

What graphics card do I need for Cairn?

Minimum: GeForce GTX 1050 Ti (4096 MB), Radeon RX 570 (8192 MB). Recommended: Geforce RTX 2060 Super (6144 MB), Radeon RX 5700 (8192 MB).

How much RAM does Cairn need?

Cairn needs 8 GB RAM at minimum, 8 GB RAM recommended.

How big is Cairn?

Cairn requires 10 GB available space.

Does Cairn run on Mac or Steam Deck/Linux?

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