XCOM: Enemy Within Expansion [Online Game Code] Publisher: 2K Platform: PC Type: DLC ESRB Rating: M17+ - Mature17+ (Blood and Gore, Strong Language, Violence) Genre: Strategy DRM: Steam System Requirements: REQUIRES XCOM: ENEMY UNKNOWN TO PLAY Operating System: Windows Vista Processor: 2 GHz Dual Core (Core 2 Duo 2.4 GHz or Athlon X2 2.7 GHz) CPU Memory: 2 GB RAM Hard Disk Space: 20 GB Free DVD-ROM Drive: Required for disc-based installation Video: 256 MB Video Memory NVIDIA GeForce 8600 GT / ATI Radeon HD 2600 XT or greater Sound: DirectX compatible sound card Recommended System Requirements Operating System: Windows 7 Processor: 2.4 GHz Quad Core CPU Memory: 4 GB RAM Hard Disk Space: 20 GB Free DVD-ROM Drive: Required for disc-based installation Video: 512MB Video Memory ATI Radeon HD 3000 Series/NVIDIA GeForce 9000 Series or greater ...