Portal 2 “Perpetual Testing Initiative” Starts Today


When Valve announced Portal 2′s free Perpetual Testing Initiative DLC, fans rejoiced. Player-created levels are a natural extension of Portal 2, and as this leaked video shows, Valve are old hands when it comes to supporting the modding community and giving them the tools they need to make cool content.

Today, the system goes live, and Portal 2 creators will soon be hard at work crafting puzzles that will test fans’ brainpower and extend the life of the game. At GDC, Game Front learned “How Portal 2 Was Made” by Valve. We’re about to learn how it gets made by the community.

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