Block Battle

Use Tower labels to select a tower, then use labeled cards to spawn in enemies. Defeat all of the opponents towers to win.  

Controls may be a bit hard to start with. Red uses z,x,c,v to switch towers, and A, S, D, F, G to spawn enemies.  Likewise, Blue uses 1,2,3,4,5 to spawn enemies, and 6,7,8,9 to switch towers. MAKE SURE YOU ARE USING NUMBER PAD. This was so both players can control comfortably on one computer. 

There is an experimental AI version, but for now single and multiplayer are also available.