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Command & Conquer 4: Tiberian Twilight[3] is a real-time tactics video game and the latest installment of the popular Command & Conquer franchise, released March 16, 2010. It constitutes the final chapter in the Kane saga. Command & Conquer 4 is the first game in the series to implement a form of DRM that requires constant Internet access; this type of restrictive DRM is fairly new and targets the used games market as well as ensuring that households must buy a copy per person. The game was released for digital download via online gaming distribution service, Steam on March 19, 2010. Command & Conquer 4 also utilizes EA's own servers for online play, rather than GameSpy Servers which EA has relied on for previous Command & Conquer games. A closed beta of the game was officially released by EA to contest winners on November 21, 2009.

The basic system requirements are as follows

Required: Internet connection required to install and play.
OS: Windows XP SP3 / Vista SP1 / Windows 7
Processor: Intel Core 2 or better / AMD 64 X2 or better
Memory: 1 GB for XP / 1.5 GB for Vista and Windows 7
Hard Drive: At least 10 GB of free space
DVD-ROM: 8x Speed
Video Card: 256MB RAM with support for shader model 3*
Sound Card: Direct X 9.0c compatible
DirectX: Version 9.0c (included)
Online: 2 - 10 Players
Input: Keyboard, Mouse, VOIP headset
Supported video cards: Nvidia GeForce 6800 or better, ATI Radeon X1600 or better. Laptop versions of these chipsets may work but are not supported. Updates to your video and sound card drivers may be required.