In order for you to play Capsized on Linux with minimal graphics settings, your computer must meet the following requirements
Operating System:
glibc 2.15+, 32/64-bit. S3TC is NOT required.
Processor Dual Core CPU
Memory (RAM):
1.5 GB RAM
Hard Disk Space:
1.0 GB free space
Video Card:
OpenGL 3.0+ support (2.1 with ARB extensions acceptable)