Ran into this little gem the other day while talking to some friends on Skype. It's an Attack on Titan game made in Unity. You can play on your own, or over the net with a few of your friends. Also, the difficulty can be changed as well as the controls. It's pretty fun, if a bit difficult to control at times. http://fenglee.com/game/aog/
I used to LAN this with a few friends at school during C++ class (because we would always finish our work early and have time to kill), but some jerk decided to play it in the library and it got blocked on the school network. [video=youtube;yJxCdh1Ps48]http://www.youtube.com/watch?v=yJxCdh1Ps48[/video] Playing it normally, however, I find to be incredibly fun! The two new additions, Jean and Marco, are interesting as well. Jean can apparently cut himself out of a titan's grasp, and Marco... Marco can... uhh... ... .. . I'll get back to you on that when I find out. I prefer playing Mikasa. The straight down lunge is nice for getting out of high-speed launches from the spawn point quickly instead of having to do all this fancy stuff with your gas tank. Also helps to kill aberrants VERY quickly after they've faceplanted.
Darn, I didn't even know Mikasa even had that special attack. Yeah, I still have quite a bit to learn about playing the game. As for the game getting blocked, I guess you could always try a proxy. Although I haven't worked against a school's blocking system in awhile