This was actually pretty fun play once I figured out how to put the cards on the towers :) And then to watch it even speeded up :) I got maxi to round 4 hihi but first then I saw that my Cogs added up by each destroyed cog after the attack started, so I realized that I can get more towers and adjust my strategy even during the game :) so I finaly finished the 5 round and hey, there was another level :)) This is a good concept and I can imagine many levels with building up chalenges :) Good job!