Metro: Last Light continues the story of Metro 2033. Following a nuclear apocalypse, the few remaining human survivors now live in the metro tunnels beneath Moscow. Factions of survivors fight amongst each other while also fending off the mutants that live in the tunnels. These factions are now seeking for a doomsday weapon that could end the civil war altogether.

On its lowest settings, Last Light can run on a variety of systems. You can play it with a DirectX 9.0 compatible card and 2GB of RAM. It supports Windows XP and Vista in addition to 7 and 8.

If you're going to upgrade your system for Last Light, though, you have a chance to get the game for free. Select retailers will provide you with a download code for the game if you purchase an NVIDIA GeForce GTX 660 graphics card or above. The list of participating companies can be found at NVIDIA's website. These codes will expire on December 31st.

Metro: Last Light will launch worldwide in May on the PC, PS3 and Xbox 360.

Minimum
Windows: XP (32-Bit), Vista, 7 or 8
CPU: 2.2 GHz Dual Core e.g. Intel Core 2 Duo
RAM: 2GB
Direct X: 9.0c
Graphics Card: DirectX 9, Shader Model 3 compliant e.g. NVIDIA GTS 250 (or AMD equivalent e.g. HD Radeon 4000 series) or higher
For 3D Vision Support:
NVIDIA GTX 275 or higher
120Hz Monitor
NVIDIA 3D Vision kit for Windows Vista, 7 or 8
Recommended
Windows: Vista, 7 or 8
CPU: 2.6 GHz Quad Core e.g. Intel Core i5
RAM: 4GB
Direct X: 11
Graphics Card: NVIDIA GTX 580/660 Ti (or AMD equivalent e.g. 7870) or higher
For 3D Vision Support:
NVIDIA GTX 580/660Ti or higher
120Hz Monitor
NVIDIA 3D Vision kit for Windows Vista, 7 or 8
Optimum
Windows: Vista, 7 or 8
CPU: 3.4 GHz Multi-Core e.g. Intel Core i7
RAM: 8GB
Direct X: 11
Graphics Card: NVIDIA GTX 690 / NVIDIA Titan
For 3D Vision Support:
NVIDIA GTX 690
120Hz Monitor
NVIDIA 3D Vision kit for Windows Vista, 7 or 8

My Cyberpower Rig :
CPU: i7-970 Hexacore 3.2GHz
Motherboard: Asus Rampage Gene III
Graphics card: 7870XT Tahiti Le 2GB
SSD: Cyberpower Kingston 64gb
HDD: Samsung 250 gb , Segate 500gb & Hitachi 1Tb
Memory: 6GB DDR3 Kingston HyperX T1
Power Supply Antec 850W
PC Case : ThermalTake Dokker less