In order for you to play No More Room in Hell on Linux with minimal graphics settings, your computer must meet the following requirements
Operating System:
Ubuntu 14.04LTS or better (highly recommend non-LTS latest)
Processor (CPU):
Dual core 2.8 GHz processor or better
Memory (RAM):
2 GB RAM
Graphics Card:
Radeon HD 5000 Series or nVidia GeForce 200 series or better
Hard Drive:
10 GB HD space
Other Requirements:
Mouse, Keyboard, Broadband Internet connection with at least 5Mbps up/down