great but..
its to easy to finish. i finished this game in less than an hour, and then did survival mode which i basically set up over night and when i woke up in the morning (8hrs later) it was still running.
the enemy in survival mode has less space than you, and it uses emp's. in survival mode they should be given twice the space as you are and they should not use the emp. well that's just my opinion but it would make things more difficult for the players.
also just another thing you might want to add in the future is a settings menu for survival. ie. i could set the enemy to have more or less space to work in, toggle weather effects, and change starter cash.
anyways nice game but could use some touch ups.