Perpetual Testing Initiative

Portal 2 UGC tools expanded to co-operative levels

Valve has opened up Portal 2’s Perpetual Testing Initiative – mod tools for user-created levels – to co-operative play.

Perpetual Testing Initiative headlines

  • Portal 2 users create over 35,000 maps, Steam holds sale to celebrate

    To celebrate the successful debut of the Portal 2 Perpetual Testing Initiative, Steam is holding a Weekend Workshop Sale, with huge discounts available for Portal 2, Elder Scrolls V: Skyrim and many Team Fortress 2 Workshop Items.

  • "Blappeture Mesa" Half-Life reference pulled from Portal 2 DLC

    Although it surfaced on YouTube last week, someone’s now put together a handy website showing off a Half-Life easter egg in Portal 2’s recent DLC pack.

  • Perpetual Testing Initiative now available for Portal 2

    Valve has announced the free Portal 2 update, Perpetual Testing Initiative, is now available on PC and Mac. The DLC allows players to “easily create, share, and play Portal 2 puzzles,” via the in-game Puzzle Maker. Log into Steam and get to downloading.

  • Video preview demonstrates in-game editor for Portal 2

    A video preview of the Perpetual Testing Initiative DLC for Portal 2 has been released by Steam user Doogiehoogie. It’s posted below. The DLC allows users to create, share, and play Portal 2 puzzles using the puzzle maker. Users can then publish maps to the Steam Workshop so that others can browse, vote on, and […]