In order for you to play Vigilantes on Linux with minimal graphics settings, your computer must meet the following requirements
Operating System:
Ubuntu 12.04 or later (64-bit)
Processor (CPU):
2.4ghz Intel Core 2 Duo or equivalent
Memory (RAM):
4 GB RAM
Graphics Card:
NVIDIA GeForce GTX 260 or Radeon HD 4850 (512 MB VRAM)
Storage:
5 GB available space
In order to play Vigilantes on Linux with maximum graphics settings, you need a computer with a configuration no worse than the following
Operating System:
Ubuntu 12.04 or later (64-bit)
Processor (CPU):
Intel i5 series or equivalent
Memory (RAM):
8 GB RAM
Graphics Card:
NVIDIA GeForce GTX 460 or Radeon HD 5770 (1 GB VRAM)
Storage:
5 GB available space