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![Valve, creators of best-selling game franchises (such as Half-Life, Left 4 Dead, Team Fortress, and Counter-Strike) and leading technologies (such as Steam and Source), today announced the second game add-on […]](http://steamaddicts.com/wp-content/uploads/portal2-map-editor-cover-195x110.jpg "Valve Announces Portal 2 Update Featuring In-Game Editor")
Valve Announces Portal 2 Update Featuring In-Game Editor
Posted on October 21, 2011 | 4 CommentsValve, creators of best-selling game franchises (such as Half-Life, Left 4 Dead, Team Fortress, and Counter-Strike) and leading technologies (such as Steam and Source), today announced the second game add-on […]
