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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: May 21, 2018 (5 days ago) June 30, 2017 (330 days ago) Latest Portal Patch December 08, 2014 (1265 days ago) Latest Authoring Tools patch: September 08, 2017 (260 days ago) 6 December 2017 A new entry in the Portal series arrives in the form of Bridge Constructor Portal. Check out the announcement trailer!. 30 June 2017 – The official blog announces that "security issues" have been patched out thanks to the reporting of Justin Taft from One Up Security, LLC. 5 April 2016 – The Lab, a collection of 8 VR experiments set within a pocket universe of Aperture Science, has been released on Steam! Defend your castle from a horde of Bendy-invaders, play fetch with a robotic dog, and more! 2 October 2015 – The official blog announces that Chell and Wheatley return to Aperture Science in a level pack for LEGO Dimensions. 25 June 2015 – Portal Stories: Mel, a mod for Portal 2, has been released on Steam. Take a journey as Mel through the Aperture facilities and discover new tests, new content, and a new threat to Aperture. 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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