but it's still one of the coolest in video game history. It allows you to instantly go from one portal to wherever the second is placed, and by using science you can propel yourself forward at ...

Explore a new wing of Aperture Science focused on the creation of Portal Guns. Play as a scientist working at this research centre, and traverse it's remains after an unforeseen accident sends you ...

Break the laws of spatial physics in ways you never thought possible, with a wider variety of portal puzzles and an expansive story that spans a single player and co-operative game mode. Set in the ...