For all of its expert writing and interesting characters, the gameplay of Portal is where it truly shines. Levels, broken up into different "test chambers," challenge the player in new and unexpected ...

Test Chamber 16 is Portal 2‘s final main puzzle room and it’s definitely one of the game’s trickiest. It combines excursion funnels, repulsion gel, and turrets in a way that can stump even the most ...

They’ve got you out gunned. Turrets are introduced in Portal 2 in Test Chamber 13 during Chapter 3, but it’s not until Test Chamber 15 that they truly start to be recognized as the threats that they ...