Portal 2

Minimum System Requirements:

• OS: Windows 7 / Vista / XP
• Processor: 3.0 GHz P4, Dual Core 2.0 (or higher) or AMD64X2 (or higher)
• Memory: 1GB XP / 2GB Vista
• Hard Disk Space: At least 7.6 GB of Space
• Video: Video card must be 128 MB or more and should be a DirectX 9-compatible with support for Pixel Shader 2.0b (ATI Radeon X800 or higher / NVIDIA GeForce 7600 or higher / Intel HD Graphics 2000 or higher).
• Audio: DirectX 9.0c compatible

GAME TRAILER



Game Description :

             Portal 2 is a first-person puzzle-platform video game developed by Valve Corporation. It is the sequel to the 2007 video game Portal and was announced on March 5, 2010, following a week-long alternate reality game based on new patches to the original game. Though initially slated for release in the last quarter of 2010, the game was postponed to the week of April 18, 2011. The game was released by Valve through Steam for Microsoft Windows and Mac OS X, while the PlayStation 3, Xbox 360 and retail Windows/OS X versions of the game are distributed by Electronic Arts. The game's release on Steam was preceded by a second multi-week alternate reality game, the Potato Sack, involving 13 independently-developed titles which culminated in a distributed computing spoof to release Portal 2 several hours early.

            Portal 2 primarily comprises a series of puzzles that must be solved by teleporting the player's character and simple objects using the "portal gun", a device that can create inter-spatial portals between two flat planes. The game's unique physics allow momentum to be retained through these portals, requiring creative use of portals to maneuver through the test chambers. Other gameplay elements were added to Portal 2 including tractor beams, laser redirection, and special paint-like gels that impart special properties to objects they touch. Similar to how the student team of Narbacular Drop were brought into Valve to expand their game to the basis of Portal, the team from Independent Games Festival-winning DigiPen student project Tag: The Power of Paint was hired by Valve to incorporate their game's paint mechanics into these new gels.