Portal 2
= Portal 2
{wiki=Portal_2}
Portal 2 is a first-person puzzle-platform video game developed by Valve Corporation and released in April 2011. It is a sequel to the 2007 game Portal, which was part of the game bundle "The Orange Box." In Portal 2, players continue the story of Chell, a test subject who navigates through a series of puzzles using a "portal gun.