In order for you to play Descenders on Linux with minimal graphics settings, your computer must meet the following requirements
Operating System:
Ubuntu 12.04 32-bit
Processor (CPU):
Intel Core i5
Memory (RAM):
4 GB RAM
Graphics Card:
Nvidia Geforce GTX 650/equivalent or higher*
Storage:
9 GB available space
In order to play Descenders on Linux with maximum graphics settings, you need a computer with a configuration no worse than the following
Operating System:
Ubuntu 12.04 32-bit
Processor (CPU):
High-range Intel Core i5
Memory (RAM):
8 GB RAM
Graphics Card:
Nvidia Geforce GTX 760/equivalent or higher
Storage:
9 GB available space