While the game is still fairly linear, it offers a lot more room for exploration and many puzzles involve getting from one test chamber to the next, not merely solving the challenges within.
The game introduces new environments, including the ruins of the Enrichment Center from the first game, the abandoned facilities of the original Aperture Laboratories, and a haphazard and idiotic renovation of the modern test chambers. GLaDOS puts Chell right back into a series of test chambers while she works on getting the Enrichment Center to rebuild itself, while Wheatley continues to attempt to engineer an escape.ĭuring the course of the game, much is revealed about Aperture Science's backstory - as well as the backstory of its founder, Cave Johnson, and several other characters. While roaming the remains of the facility, the two accidentally repower GLaDOS - who is, needless to say, not too happy to see Chell again. The Aperture Science Enrichment Center has fallen into ruin, and Chell is awakened from cryogenic sleep by Wheatley, a talkative Personality Core who needs her help to escape the lab. It picks up the story of Chell an unspecified number of years after the events of the first game.
