Desperate God, it's Free and all manual, no auto counters, auto turns.
and so far is fun
Edit: here's the link
http://www.wolfire.com/desperate-gods
Second Edit:
Controls:
1 = music off
2-5 = BGM
F = Flip card
R = Flip card to upright Facing
Q+E = Rotate cards
Z = Zoom in (WSAD to...