The last four puzzles of Portal 2‘s eighth chapter are hands down the toughest in the entire game. Because there are so many elements in each test, they’re extremely complicated and can slow the ...

After peering down at Wheatley's failed experiment, turn around and look at the bottom left side of the wall behind you and you'll see a broken grate. Portal through it, and follow the walkway into ...

Portal 2 is the follow up release to Valve's iconic portal-based first-person puzzle game. This time, players can embark on a new adventure against the punishing A.I. GlaDos, with a new companion ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Valve have a great, mischievous sense of humour. Their games are often full of little secrets, ...

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 ...

As Wheatley confronts you with his spikes, fire a portal through the broken wall behind him. After a moment, white gel will begin dripping onto another surface. Fire a portal beneath the drips, and a ...