Valve Corporation is an American studio of video games development. This firm was created in 1996 and is now fit in the Town of Bellevue in Washington State. The game which allowed them to be famous is the widely known Half life where you embody Gordon Freeman, a scientist of a scientist top secret complex building where there are experimentations on other dimensions. Released in 1998, this game is a real revolution of first person shooters with incredible graphics.

This game allowed mods creations by anyone who has some abilities in computing. So born Counter Strike, one of the most played games this latest 10 years. Another game released by Valve Corporation is Team Fortress; a game not as so played as Counter Strike but is exciting and need skills to be played.

Recently, this firm released Half life 2 and its sequels chapters by chapters. Team Fortress 2 and Portal gave a new vision of Valve Corporation’s licences; Team Fortress 2 by example is now more about Funs and Team works than ever. Portal is an interesting puzzle game, fun and innovative, you wear a portal gun which allows you to throw portal in order to resolve 3D puzzles.