RPS Wot-I-Think: http://www.rockpapershotgun.com/2013/01/31/wot-i-think-antichamber/ Antichamber is a mildly insane first-person-puzzler. It's Portal with different puzzle mechanics, no story, and rather more faith in the player's ability to overcome challenge without any hand holding. Most of the time, the hint for a puzzle comes after you've solved it--which is actually rather nice here, because otherwise I'd be left wondering if I'd solved it or just exploited a bug. It's emphatically non-Euclidean. Walk through a door, turn around, and walk back. Even odds you aren't where you started. I have absolutely no clue how the map fits together. There is a map, though, and you stumble and grope your way through it in a fairly nonlinear fashion. Get stuck, and you can go away and come back when you have the right tools. Those tools may be items acquired in the game, or (just as often) new concepts that can be applied at any time once you figure them out. I went in with misgivings about the difficulty, since this sounded like the sort of game that's impossible to solve without inhabiting the designer's head or a walkthrough. I didn't need to worry, though; this isn't an easy game, but it's fair and I've been progressing at a reasonable pace. One minor hint: The RPS review mentions that it's easy to find yourself beating your head against a puzzle that you can't solve because you don't have the right tool yet. This is true. However, there is a clue as to when this is happening, and once you figure it out you'll always know when you can't progress through an area yet. It's pretty awesome if you like puzzle games. Anyone else playing?