- Minimum system requirements

Operating systems: Microsoft Windows 2003, XP, XP64, Vista, 2008, or Windows 7 (All Editions)
CPU: Intel Pentium IV 3.4Ghz MMX PC or 100% Compatible
Memory: 1GB of Ram (XP) 2GB Ram (Vista/7) + DirectX 9.0c (Has a few issues on DX 10.0 but works fine on DX 11.0)
CD-ROM Speed: DVD DRIVE Graphics Card: Minimum 256MB Directx 9.0c (NVIDIA 7900 or better X1800 or better)

- Recommended system requirements

Operating systems: Microsoft Windows Vista, or Windows 7 (All Editions)
CPU: Intel Intel Core 2 Duo E6400 or equivalent 100% Compatible
Memory: 2GB of RAM + DirectX 9.0c (Has a few issues on DX 10.0 but works fine on DX 11.0)
CD-ROM: DVD DRIVE
Graphcis Card: 512MB Direct x 9.0c (NVIDIA 8800 or better ATI HD2900 Pro or better)

- Steam Required

In order to play Aliens vs. Predator offline and online you need to create a a Steam account. Steam accounts are free, only the game will cost money. Please visit Steam