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Index Story Characters Portals Co-op Robot Enrichment Mechanics Portal Portal Portal: Still Alive Portal 2 Portal 2: Lab Rat Aperture Science Achievements Items Voice lines Mechanics Test Chambers Cubes Turrets Handheld Portal Device Material Emancipation Grill High Energy Pellet Gels Portals Characters Chell GLaDOS Cave Johnson Wheatley Atlas P-body Caroline Hoopy the Hoop Featured article — Puzzle Creator The Puzzle Creator (also known as Puzzle Maker or Editor) is a part of the Perpetual Testing Initiative in Portal 2, a DLC released on May 8th, 2012 allowing the creation of both single-player and co-op test chambers within a simple in-game editor. Continue reading–Featured article project–Previously featured

Latest updates Latest Portal 2 Patch Latest Blog post: December 04, 2014 (3 days ago) September 17, 2014 (81 days ago) Latest Portal Patch June 24, 2013 (531 days ago) Latest Authoring Tools patch: May 21, 2012 (930 days ago) 15 July 2014 – Aperture Tag: The Paint Gun Testing Initiative, a mod for Portal 2, has been released on Steam. Taking the portals out of Portal, this mod features gameplay based around the use of Gels. 18 Apr 2014 – Thinking with Time Machine, a mod for Portal 2, has just been released onto Steam! This mod puts a unique twist on all things Portal and requires you to think in four dimensions. 16 August 2012 – Co-op editing comes to the Perpetual Testing Initiative! Players can now edit Co-Op puzzles in the Puzzle Creator. Additionally, all Portal 2 owners received a 75% off Portal 2 coupon. 20 July 2012 – An anonymous tech has laser-engraved Wheatley on a panel of Japanese resupply craft the HTV-3, as posted on the official blog. 7 May 2012 – Cave Johnson publishes a note to all Aperture employees, reminding them to review test chambers made by other employees with the Puzzle Creator and that he'll keep an eye on you as you help in the Perpetual Testing Initiative. 4 May 2012 – The Portal 2 Team releases a five-step tutorial in the blog on how to create your own Test Chambers with the Puzzle Creator. Update or view past news Did you know… ...that GLaDOS' and turrets' voice actor, Ellen McLain, also voices Caroline in Portal 2, the Administrator in Team Fortress 2 and the Overwatch in the Half-Life 2 series? ...that GLaDOS stands for Genetic Lifeform and Disk Operating System? ...that Ellen McLain is also an opera singer and sang the Turret Opera? ...that Valve employee Richard Lord was the original, placeholder voice for Wheatley? ...that Portal 2 originally wasn't going to have portals? ...that there were plans for "sticky gel" in Portal 2? ...that both Portal and Portal 2 derived many of their ideas from prototypes made by Digipen students? ...that the cake in Portal is a Black Forest cake that project lead Kim Swift chose at a nearby bakery? Add a fact–More "Did you know"–Previously featured

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