In order for you to play Aim Trainer - Shooting Range on Linux with minimal graphics settings, your computer must meet the following requirements
Operating System:
Linux kernel 3.0(x86_64) or later
Processor (CPU):
1 Ghz
Memory (RAM):
256 MB RAM
Graphics Card:
OpenGL 2.1 supported GPU
Storage:
200 MB available space
Sound Card:
OpenAL