Minimum:

OS: Windows XP, Vista, or 7
Processor: Dual core CPU (any Core 2 Duo or better)
Memory: 1GB RAM
Graphics: DirectX 9, Shader Model 3 compliant graphics cards (GeForce 8800, GeForce GT220 and above)
DirectX®: DirectX 9.0c

Enabling 3D Vision:
Metro 2033 utilizes NVIDIA 3D Vision with compatible cards and hardware. To play Metro 2033 in 3D you will require:

Metro 2033 screenshots