Valve's ending to Portal was retroactively changed to show the main character, Chell, getting pulled back into the Aperture Science facility shortly after defeating GLaDOS. Portal 2 expands upon this ...

Stuffing Portal's supervillain into a potato wasn't just a big surprise, it showed us a gentler side of GLaDOS. When you purchase through links on our site, we may earn an affiliate commission. Here’s ...

Crossing rivers with suspension bridges or steel rebar is folksy and quaint, but those methods are too old fashioned for Aperture Science. And in the upcoming Bridge Constructor Portal, due out ...

Kicking off after the first game, the silent protagonist Chell once again finds herself within the confines of Aperture Science, undergoing more tests in the ever watchful eye of the sadistic GLaDOS.