Official specs from Steam

Against the Storm system requirements

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

Minimum

OSWindows® 10 (64-bit)
ProcessorIntel® Core™ i3-530 (dual-core) / AMD® Phenom™ II X4 965 (quad-core)
Memory4 GB RAM
GraphicsNVIDIA® GeForce® GTS 450 (1 GB) / AMD® Radeon™ HD 7750 (1 GB)
DirectXVersion 10
Storage5 GB available space

Recommended

OSWindows® 10 (64-bit)
ProcessorIntel® Core™ i5-2500K (quad-core) / AMD® FX-Series™ FX-8320 (quad-core)
Memory8 GB RAM
GraphicsNVIDIA® GeForce® GTX 970 (4 GB) / AMD® Radeon™ R9 290X (4 GB)
DirectXVersion 12
Storage5 GB available space

FAQ

What graphics card do I need for Against the Storm?

Minimum: NVIDIA® GeForce® GTS 450 (1 GB) / AMD® Radeon™ HD 7750 (1 GB). Recommended: NVIDIA® GeForce® GTX 970 (4 GB) / AMD® Radeon™ R9 290X (4 GB).

How much RAM does Against the Storm need?

Against the Storm needs 4 GB RAM at minimum, 8 GB RAM recommended.

How big is Against the Storm?

Against the Storm requires 5 GB available space.

Does Against the Storm run on Mac or Steam Deck/Linux?

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