Official specs from Steam

They Are Billions system requirements

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

Minimum

OS *Windows 7, 8, 10 (32 and 64 bits)
ProcessorINTEL, AMD 2 cores CPU at 2Ghz
Memory4 GB RAM
GraphicsIntel HD3000, Radeon, Nvidia card with shader model 3, 1GB video ram.
DirectXVersion 9.0c
Storage4 GB available space
Additional NotesMinimum resolution: 1360x768, recomended FULL HD 1920x1080.

Recommended

OS *Windows 7, 8, 10 (64 bits)
ProcessorINTEL. AMD 4 cores CPU at 3Ghz
Memory8 GB RAM
GraphicsRadeon 7950 or above, Nvidia GTX 670 or above. 4GB video ram.
DirectXVersion 9.0c
Storage4 GB available space
Additional Notes4K Monitor (3840x2160)

FAQ

What graphics card do I need for They Are Billions?

Minimum: Intel HD3000, Radeon, Nvidia card with shader model 3, 1GB video ram.. Recommended: Radeon 7950 or above, Nvidia GTX 670 or above. 4GB video ram..

How much RAM does They Are Billions need?

They Are Billions needs 4 GB RAM at minimum, 8 GB RAM recommended.

How big is They Are Billions?

They Are Billions requires 4 GB available space.

Does They Are Billions run on Mac or Steam Deck/Linux?

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