There's this game that has been released in a free version (I have permission from the author).
I haven't played it yet but I submit it here for anyone who want to give it a try.
Link for the online game: http://love-joint-games.com/PWU_ep2/public/sha3445nbd/
Screenshots:
http://www.love-joint.com/ep2screens/1.png
http://www.love-joint.com/ep2screens/2.png
http://www.love-joint.com/ep2screens/3.png
http://www.love-joint.com/ep2screens/4.png
http://www.love-joint.com/ep2screens/5.png