"Natural Selection 2 is an immersive, multiplayer shooter that pits aliens against humans in a strategic and action-packed struggle for survival."

Requirements:

Minimum:
OS:Windows 7 32/64-bit / Vista 32/64 / XP
Processor:Core 2 Duo 2.6 ghz
Memory:2 GB RAM
Graphics:DirectX 9 compatible video card with 1GB VRAM and support for Shader Model 3 (e.g. ATI X800, NVidia 8600 or better)
DirectX®:9.0
Hard Drive:5 GB HD space

Recommended:
OS:Windows 7 32/64-bit / Vista 32/64 / XP
Processor:Core 2 Duo 3.0 ghz
Memory:4 GB RAM
Graphics:DirectX 9 compatible video card with 1GB, AMD 5770, NVidia GTX 450 or better
DirectX®:9.0
Hard Drive:5 GB HD space
Other Requirements:Broadband Internet connection

Good luck to you all!