The Talos Principle(PC but announced for PS4)
A bit late to the party, but there isn't much of a party as after searching the board it appears only Iannis (who praised it in the Religion thread in general) and me (who thought it looked promising in the E3 2013 thread and mentioned it based on its great review scores in the Game of the Year 2014 thread) posted about it on rerolled.
Released in december of last year on Steam, The Talos Principle is a first person action-puzzle game, but it is also an adventure game of sorts and an extremely clever philosophical experience. Explaining the setting would already be in spoiler territory considering understanding the setting is a core element of the game.
The puzzle gameplay is very well done, with a smooth progression in complexity through additional elements thrown in the mix. The basic idea is that each puzzle is a mini-maze where you have to reach an item, creating a path using cubes (hexahedra to be precise!) you can climb or use to prop up items, jammers, that freeze electronic equipment (such as flying mines, defense turrets) or open force field doors, and reflectors you use to create nets of energy beams to activate doors or power devices. A bit like in the Tower of Hanoi kind of puzzle there is often some 'building to destroy to build bigger' system, so it's mostly about planning and spacial awareness with a healthy dose of outside the box thinking.
The core puzzles are not overly difficult, but there is a layer of meta puzzles that can be fair bit trickier, but for the wrong reasons. Let me explain: there are stars you can collect (and you really want to collect them - more on that later), but while some are visible and are like additional challenges within puzzles, many others are hidden and can be anywhere. Out of the 30 in the game, I probably cheated for a dozen and there are probably 6 or 7 that I know I would not have found even if I made a real effort to try and find them.
While a very competent puzzle game in its own right, The Talos Principle really shines with its very clever and original story and narration. Of the top of my head I count 5 different narrative axis (for lack of a better term) that runs in parallel with each other, all linked with the situation we are in and all tied with the big philosophical questions at the core of the game. There are several different endings, but, sadly, the one that really enlightens you about what the whole game is about, that is extremely satisfying and nothing short of brilliant, well... that one is very difficult to get. It makes sense that it is, but missing out on that ending is also a bit tragic considering how good it is.
It took me a little less than 30 hours to complete.
It should be noted that a pretty significant DLC (15ish hours for me) has just been released. It merges very nicely with the narration of the core game and extends with elegance its universe with another set of philosophical questions. I must say that the resolution was a little bit underwhelming compared to the core game though.
Oh and this is supposed to be released on PS4 at some point. Maybe they focused on finishing the DLC and now will work on a core+dlc port?