Portal 2 draws from the award-winning formula of innovative gameplay, story, and music that earned the original Portal over 70 industry accolades and created a cult following. The single-player portion of Portal 2 introduces a cast of dynamic new characters, a host of fresh puzzle elements, and a much larger set of devious test chambers. Players will explore never-before-seen areas of the Aperture Science Labs and be reunited with GLaDOS, the occasionally murderous computer companion who guided them through the original game. The game’s two-player cooperative mode features its own entirely separate campaign with a unique story, test chambers, and two new player characters. This new mode forces players to reconsider everything they thought they knew about portals. Success will require them to not just act cooperatively, but to think cooperatively. Features Extensive single player: Featuring next generation gameplay and a wildly-engrossing story. Complete two-person co-op: Multiplayer game featuring its own dedicated story, characters, and gameplay. Advanced physics: Allows for the creation of a whole new range of interesting challenges, producing a much larger but not harder game. Original music. Massive sequel: The original Portal was named 2007's Game of the Year by over 30 publications worldwide. Editing Tools: Portal 2 editing tools will be included. System Requirements PC OS: Windows 7 / Vista / XP Processor: 3.0 GHz P4, Dual Core 2.0 (or higher) or AMD64X2 (or higher) Memory: 2 GB RAM Graphics: Video card must be 128 MB or more and with support for Pixel Shader 2.0b (ATI Radeon X800 or higher / NVIDIA GeForce 7600 or higher / Intel HD Graphics 2000 or higher). DirectX: Version 9.0c Hard Drive: 8 GB available space Sound Card: DirectX 9.0c compatible MAC OS: MAC OS X 10.6.7 or higher Processor: Intel Core Duo Processor (2GHz or better) Memory: 2 GB RAM Graphics: ATI Radeon 2400 or higher / NVIDIA 8600M or higher / Intel HD Graphics 3000 Hard Drive: 8 GB available space LINUX OS: Ubuntu 12.04 Processor: Dual core from Intel or AMD at 2.8 GHz Memory: 2 GB RAM Graphics: nVidia GeForce 8600/9600GT, ATI/AMD Radeon HD2600/3600 (Graphic Drivers: nVidia 310, AMD 12.11), OpenGL 2.1 Hard Drive: 8 GB available space Sound Card: OpenAL Compatible Sound Card
