Did you play long enough to fight the bosses? They don't spawn until you place a certain number of buildings so you don't get killed while doing the tutorial.
Viewing post in Economic Onslaught jam comments
sorry I did not get too far I can only give so much time to each game, and if this is so it took me a minute to understand what was going on and it doesn't say anything of the game. It's just how these things go, I know how overly critical people can be in these jams when people spent lots of time and effort on their little games/demos. All that being said I did rate your game pretty high with an average 3.5/5 which is better than most I rated in the jam ! Good job!