Perpetual Testing Initiative Archive
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![Free Update to “The Perpetual Testing Initiative” Adds New Features Valve, creators of best-selling game franchises (such as Half-Life and Counter-Strike) and leading technologies (such as Steam and Source), today […]](http://steamaddicts.com/wp-content/uploads/portal2-map-editor-cover-195x110.jpg "Portal 2 Perpetual Testing Initiative goes co-op")
Portal 2 Perpetual Testing Initiative goes co-op
Posted on August 16, 2012 | No CommentsFree Update to “The Perpetual Testing Initiative” Adds New Features Valve, creators of best-selling game franchises (such as Half-Life and Counter-Strike) and leading technologies (such as Steam and Source), today […] -
Portal 2 Perpetual Testing Initiative: over 1.3 million tests
Posted on May 10, 2012 | No CommentsSteam Workshop Sale On Now In Celebration Valve, creators of best-selling game franchises (such as Half-Life and Counter-Strike) and leading technologies (such as Steam and Source), today announced the early […] -
Portal 2 Perpetual Testing Initiative goes live
Posted on May 8, 2012 | No CommentsPortal 2 Perpetual Testing Initiative Starts Now Valve, creators of best-selling game franchises (such as Half-Life and Counter-Strike) and leading technologies (such as Steam and Source), today announced the arrival […] -
Portal 2 Perpetual Testing Initiative
Posted on April 26, 2012 | No CommentsPortal 2 Perpetual Testing Initiative Begins May 8 Ed note: Looks like Valve is finally making good on their promise of in-game level creation and sharing. Valve, creators of best-selling […]
