Neat little game, which actually makes really fun to play - a big achievement for a game jam submission! I like the variety of defenders and attackers and the upgrades you can choose from, when you failed a round - very good idea to keep players engaged! The only things I have wished for were a possibility to replace existing defenders with better ones and something you could do between rounds before starting a new day - buying an upgrade or something like this. Apart from that a very solid entry which I enjoyed very much!