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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 — GLaDOS GLaDOS is the central core designed to control, guide, and oversee the Aperture Enrichment Center. With the ability to shift and move facilities and various chambers, GLaDOS is able to achieve a seamless and almost infinite testing design whilst residing in the Central AI Chamber. Continue reading–Featured article project–Previously featured

Latest updates Latest Portal 2 Patch Latest Blog post: February 5, 2025 (131 days ago) February 18, 2021 (1579 days ago) Latest Authoring Tools patch: April 26, 2023 (782 days ago) Latest Portal Patch May 28, 2025 (19 days ago) 10 August 2023 – Pine Studio announces Escape Simulator: Portal Escape Chamber, a free DLC for Escape Simulator based on Aperture Science Enrichment Center! Check out the announcement trailer! 21 September 2022 – Nvidia announces Portal with RTX, a visually enhanced version of Portal featuring ray tracing! 28 June 2022 – The previously announced Portal: Companion Collection arrives on the Nintendo Switch! 18 April 2022 – Tag: The Power of Paint, the first-person puzzle game that inspired the Gels mechanic in Portal 2, has been released on Steam! 24 February 2022 – Valve announces Aperture Desk Job, a free playable short for the Steam Deck designed to introduce players to the Steam Deck's controls and features! Update or view past news Did you know… ...that GLaDOS', Turrets' and Caroline's voice actor, Ellen McLain, also voices 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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