Developer Guedin has created a WIP Attack on Titan game of his own located over on IndieDB
Guedin has released the first playable alpha and a new video of their fantastic looking Attack on Titan fangame. Right now the beta is simply a tutorial to get to grips with the 3D Maneuver Gear (zippy grappling hook) mechanics, and there aren’t any actual titans to fight, but even then what there is right now is massively impressive.
Link to the game:
http://www.indiedb.com/games/guedinaot
His YT channel and a clip showing off the tutorial level:
Personally I think it looks quite promising, the grappling and swinging animations already look pretty fluid and he's nailing the art style pretty nicely too and this is just a WIP as well. I really do hope he manages to complete his game though because as things are Koei has made no plans or said nothing on their Attack on Titan game coming to PC and I wouldn't mind if someone gave us one and well that person is Guedin.
Info and paragraph grabbed from Destructoid: http://www.destructoid.com/this-fab-looking-attack-on-titan-fangame-has-released-its-first-playable-alpha-332395.phtml
Mankind, in its arrogance and self-delusion, must believe they are the mirrors to God in both their image and their power. If something shatters that mirror, then it must be totally destroyed.
