Minimum System Requirements
Windows
OS:
Windows 7 SP1+ (64-bit)
Processor:
SSE2 instruction set support
Graphics:
DX10 (shader model 4.0) or higher.
Storage:
300 MB available space
Notes:
Version 9.0
macOS
OS:
Mac OS X 10.12+ (64 bit)
Processor:
SSE2 instruction set support
Graphics:
DX10 (shader model 4.0) or higher.
Storage:
300 MB available space
Linux
OS:
Ubuntu 16.04+ (64-bit)
Processor:
SSE2 instruction set support
Graphics:
DX10 (shader model 4.0) or higher.
Storage:
300 MB available space
Notes:
I don't actually own a computer with Linux, but builds are tested by an external QA team before being published and should work as well as on other platforms (in theory).
These are the requirements the publisher lists on Steam.