Telegraph 10/10 - "It's a work of masterful craft, mechanically constructed with military precision, artistically wrapped in a tremendous story and environment. Most impressively, its achievements feel effortless."
Guardian 5/5 - "Valve has created a masterpiece in Portal 2. The depth of content, the mind-bending mechanics and fantastic experience are almost certain to satisfy ardent fans of the first game; and to all newcomers to the series, it's as simple as this: prepare to have your mind blown. Over and over again."
Totally360 9.5/10 - "Overall, Portal 2 is an absolutely amazing title. Everyone (including myself) was disappointed when Portal 2 was delayed earlier this year, however, it was more than worth the wait. Portal 2 is a masterpiece that I can see myself playing for years."
IncGamers 9.6/10 - "By concentrating on iteration rather than re-design, Valve have created a sequel that improves upon the original and yet stays true to its memory. The puzzles, the story and the expert way in which players are taught to use the new tools all combine to create what is very possibly the most absorbing game the puzzle genre has ever seen."
CVG 9.3/10 - "Imaginative, challenging, hilarious and sometimes a bit exhausting, Portal 2 is one of 2011's most interesting, challenging blockbusters. Just make sure you take your sweet, sweet time with it - because you'll probably feel a hole in your head once it's done and dusted."
Level7.nu 8/10 - "The puzzles in Portal 2 are truly great, the co-op mode a welcome addition and the dialogues are sometimes hilarious. The constant "enter a room, solve the puzzle, enter a new room" formula does, however, get repetitive in the long run."
