Portal 2 Full Game Walkthrough

Portal 2 draws from the award-winning formula of innovative gameplay, story, and music that earned the original Portal over 70 industry accolades and created a cult following.

The single-player portion of Portal 2 introduces a cast of dynamic new characters, a host of fresh puzzle elements, and a much larger set of devious test chambers. Players will explore never-before-seen areas of the Aperture Science Labs and be reunited with GLaDOS, the occasionally murderous computer companion who guided them through the original game.

The game’s two-player cooperative mode features its own entirely separate campaign with a unique story, test chambers, and two new player characters. This new mode forces players to reconsider everything they thought they knew about portals. Success will require them to not just act cooperatively, but to think cooperatively.

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05:21 - Wake Up Call Achievement 19:41 - You Monster Achievement

00:29 - Undiscouraged Achievement 05:31 - Drop Box Achievement 05:59 - Final Transmission Achievement 07:45 - Preservation of Mass Achievement

03:17 - Overclocker Achievement 04:32 - Bridge Over Troubling Water Achievement 09:45 - Pturretdactyl Achievement

05:39 - SaBOTour Achievement 06:23 - Good Listener Achievement

04:04 - No Hard Feelings Achievement 05:47 - Scanned Alone Achievement 21:07 - Stalemate Associate Achievement

11:50 - Unchallenged Achievement 13:50 - Schrodinger's Catch Achievement 16:11 - Ship Overboard Achievement 17:17 - Door Prize Achievement 19:08 - Tater Tote Achievement

01:10 - Portrait of a Lady Achievement 03:14 - Stranger Than Friction Achievement 06:35 - White Out Achievement

02:55 - You Made Your Point Achievement 03:35 - Dual Pit Experiment Achievement 20:05 - Tunnel of Funnel Achievement 22:10 - Smash TV Achievement

00:55 - The Part Where He Kills You Achievement 03:57 - Pit Boss Achievement 29:45 - Lunacy Achievement