The following content was provided by the publisher.

Call of Duty: World at War completely changes the rules of engagement by redefining WWII gaming and thrusting players into the final tension-filled, unforgiving battles against a new ferocious enemy in the most dangerous and suspenseful action ever seen in WWII.
Features Include :
Harsh New Enemies, Environments and Tactics: Face off against ruthless and tactically advanced enemies that will stop at nothing to defend their homelands, from swamp ambushes and tree-top snipers to fearless Kamikaze attacks.
Co-Op Campaign Mode, Call of Duty Style: For the first time in the franchise, Call of Duty: World at War introduces co-op play, bringing fresh meaning to "No One Fights Alone".

Call of Duty 4: Modern Warfare
Steam

Call of Duty: Modern Warfare 2 (US)
Steam

Call of Duty 2
Steam

Call of Duty: Modern Warfare 2 (EU)
Steam

When purchasing products from Allcdkey.com, please bear in mind that... 

---The products you ordered from Allcdkey.com is brand new and has never been used.

---Does not include manuals, installation CDs, box, physical card or other physical elements.

---The screenshots of your products will be delivered to you by E-mail within minutes.

---Any form of CD Key, Time Card, Expansion Pack, Game Points, Trial/Beta/Item Code delivered to your E-mail box is neither refundable nor exchangeable. 

Minimum 

Disk Drive :  DVD Rom Drive 
DirectX :  9.0c 
Hard Drive Space :  8 GB Free 
Operating System :  Windows XP/Vista 
Processor :  Pentium 4 @ 3 GHz/AMD 64 3200+ 
RAM :  512 MB (1 GB for Vista) 
Video Card :  256 MB (nVidia GeForce 6600/ATI Radeon X1600)