A masterclass of the medium and in my opinion without a doubt the greatest puzzle game of all time. It took everything from the original and ramped it up and tuned it to perfection. The puzzles are more varied, more inventive, more clever, bigger, better, with more viable options, new items to use to solve them, and still boasting amazing physics that feel damn near perfect. It succeeds yet once again in making you feel smart when you get the aha moment.

The story in the first game was ok but the story in Portal 2 is so much deeper and nuanced. We get to see some of how Apatuer Science was created and what led it to becoming what it currently was. GLaDOS is back and funnier than ever and new robot Wheatley is hilarious. The humor is on point from beginning to end.

This is phenomenal game and deserves all the praise and more that it has received over the last decade.