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{{{box1-index-title}}} {{{box1-index-image1}}} {{{box1-index-image2}}} {{{box1-index-image3}}} [[{{{box1-index-article1}}}|{{{box1-index-article1}}}]] [[{{{box1-index-article2}}}|{{{box1-index-article2}}}]] [[{{{box1-index-article3}}}|{{{box1-index-article3}}}]] {{{box1-index-image4}}} {{{box1-index-image5}}} {{{box1-index-image6}}} [[{{{box1-index-article4}}}|{{{box1-index-article4}}}]] [[{{{box1-index-article5}}}|{{{box1-index-article5}}}]] [[{{{box1-index-article6}}}|{{{box1-index-article6}}}]] 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 {{{box2-fa-title}}} — 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

{{{box3-updates-title}}} Latest Portal 2 Patch Latest Portal Patch February 5, 2025 (331 days ago) June 27, 2025 (189 days ago) Latest Blog post: February 18, 2021 (1779 days ago) {{{box4-dyk-title}}} ...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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