Portal 2 is the sequel to Portal, a game added to The Orange Box as an experiment, Valve never could have predicted how well Portal was going to be taken and it demanded a sequel, now we have it, but is it just the same again? Read on to find out!
You are once again inside Aperture Science Laboratories; you wake up inside a long-term relaxation centre, the room itself looks unclean. A knock on the door from comical companion Wheatley, voiced by Stephen Merchant. This is just the start of a grand adventure.