The witness is the best game ever, to be honest. It looks like a boring game, but it's the most interesting one I've ever played. I haven't gotten very far, but I love the game.
The puzzles really exercise your brain and it is a great way to pass time. I have the game installed on all my systems. So where ever I go, i have the witness with me :P
Haven't played it in a long time though, thanks for the post. I'm gonna play it again. Also, I haven't reached as far as you. Good work! :D
have you played any of the ones I've listed below in my comment ? if you liked the witness you might enjoy them :)