In order for you to play Wargame: Red Dragon on Linux with minimal graphics settings, your computer must meet the following requirements
Operating System:
UBUNTU 12.04 LTS 64bits/UBUNTU 12.10 64bits/SteamOS 64bits
Processor (CPU):
AMD/INTEL DUAL-CORE 2.5 GHZ
Memory (RAM):
2048 MB RAM
Graphics Card:
256 MB SHADERS 3.0 COMPATIBLE. ATI RADEON X1800 GTO/NVIDIA GEFORCE 7600 GT/INTEL HD 3000 OR HIGHER
Network:
Broadband Internet connection
Storage:
20 GB available space