Around The Core Wiki - System Requirements
Minimum
OSWindows 10 (64-bit)
ProcessorDual Core 2.0 GHz
Memory2 GB
GraphicsDirectX 10 compatible graphics card
Storage—
Recommended
OS—
Processor—
Memory—
Graphics—
Storage—
Source: Official Steam listing
Confirmed via the official Steam listing for the minimum tier. No recommended tier or storage figure has been published as of this writing.