Portal 2

g4tv.com review
We live in an era when game journalists can cynically nitpick faults, or forgive a favorite franchise for multiple sins. I see the temptation for both approaches. A game can be riddled with flaws but still somehow be fun, and a game can be perfectly polished yet a total bore. When you review, you need to think about your predilections and your preconceptions. I admit I am a gamer who loves strategy - I am happiest when I am being mentally challenged by my games, and I strive to be smarter and faster than everyone else. I put more value in beating someone in Starcraft than I ever did in my kill/death ratio.
Read Full Review

gamexplain.com review
Whereas Portal 1 engaged my mind, Portal 2 captured my heart. A fantastic sequel to a benchmark game and serves as the most effective argument against the annualization trend burdening many popular series. I *companion cube* Portal 2.
Read Full Review

eurogamer.net review
Portal is perfect. Portal 2 is not. It's something better than that. It's human: hot-blooded, silly, poignant, irreverent, base, ingenious and loving. It's never less than a pure video game, but it's often more, and it will no doubt stand as one of the best entertainments in any medium at the end of this year. It's a masterpiece.
Read Full Review

videogamer.com review
I think you knew all along this was going to be great. Fantastic, even. All the same, I don't think you'll be prepared for it being this good. I may have buttoned my lip in terms of concrete spoilers, but a mere ten minutes here will yield more memorable moments than you're likely to squeeze out of the entirety of most other games this year. In all aspects of its design, Portal 2 is genius.
Read Full Review

giantbomb.com review
Valve falls further down its own rabbit hole with this expansive sequel that retains the cynical heart of the original Portal, while blowing out the scale on virtually ever aspect of the execution.
Read Full Review