In order for you to play Unavowed on Linux with minimal graphics settings, your computer must meet the following requirements
Operating System:
Ubuntu, Debian - (64 bit)
Processor (CPU):
2.7 GHz Dual Core (and above, can run on single core)
Memory (RAM):
2 GB RAM
Graphics Card:
OpenGL
Storage:
3 GB available space
Sound Card:
Alsa/PulseAudio/DSP