Official specs from Steam

Atmosfar 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 (64-bit)
ProcessorIntel Core i5-7500 (3.4 GHz 4 Core) or AMD Ryzen 5 1500X (3.5 GHz 4 Core)
Memory8 GB RAM
GraphicsNvidia GeForce RTX 2070 or AMD Radeon RX 6700 XT
DirectXVersion 11
Storage25 GB available space
Sound CardAny
Additional NotesInternet connection required for multiplayer.

Recommended

NoteRequires a 64-bit processor and operating system
OSWindows 11 (64-bit)
ProcessorIntel Core i7-14700K (5.6 GHz 8 Core) or AMD Ryzen 7 7800X3D (4.2 GHz 8 Core)
Memory16 GB RAM
GraphicsNvidia GeForce RTX 4070 or AMD Radeon RX 7800 XT
DirectXVersion 12
Storage50 GB available space
Sound CardAny
Additional NotesInternet connection required for multiplayer.

FAQ

What graphics card do I need for Atmosfar?

Minimum: Nvidia GeForce RTX 2070 or AMD Radeon RX 6700 XT. Recommended: Nvidia GeForce RTX 4070 or AMD Radeon RX 7800 XT.

How much RAM does Atmosfar need?

Atmosfar needs 8 GB RAM at minimum, 16 GB RAM recommended.

How big is Atmosfar?

Atmosfar requires 25 GB available space.

Does Atmosfar run on Mac or Steam Deck/Linux?

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