In order for you to play Dungeons 2 on Linux with minimal graphics settings, your computer must meet the following requirements
Operating System:
x64-Versions of Ubuntu 14.04 LTS & Ubuntu 14.10
Processor (CPU):
AMD or Intel Dual-Core @ 2.6 GHz
Memory (RAM):
4 GB RAM
Graphics Card:
NVIDIA GeForce GTX 460 or similar with 1 GB or dedicated VRAM, Shader Model 5 support
Storage:
5 GB available space
In order to play Dungeons 2 on Linux with maximum graphics settings, you need a computer with a configuration no worse than the following
Operating System:
x64-Versions of Ubuntu 14.04 LTS & Ubuntu 14.10
Processor (CPU):
Intel i5 Quad-Core @ 3.2 GHz
Memory (RAM):
8 GB RAM
Graphics Card:
NVIDIA GeForce GTX 760 or similar with 2 GB of dedicated VRAM, Shader Model 5 support
Storage:
5 GB available space