In order for you to play Chasm on Linux with minimal graphics settings, your computer must meet the following requirements
Operating System:
glibc 2.28+, 64-bit. S3TC support is NOT required.
Processor (CPU):
Dual Core CPU
Memory (RAM):
1 GB RAM
Graphics Card:
OpenGL 3.0+ support (2.1 with ARB extensions acceptable)
Storage:
1 GB available space