Text was difficult to read at times. First level was a little unintuitive solely because there's no indication of exactly where you need to go, and it's not just "anywhere past the swamp." My game 'ended' at the level with the two towers because it just... stopped there. Nothing happened after I'd captured the towers.

Thanks for playing :) I didn't think it was possible to capture BOTH towers, I played that level dozens of times and always barely made it when avoiding one tower and attacking the other one. I would love to hear how you did it!
When in doubt, you can continue by moving to the right of the screen (so "anywhere past the swamp" should work as well, code-wise it's being in the highest 10% of x Coordinates). Sorry that wasn't clear.

Nice mechanics! I really like the you-control-the-swarm type of games. It was sometimes hard to control the soldiers properly, especially when navigating subsets of them, and it would have been nice with a clearer display of the fighting. Nevertheless, this game was great fun and I played through all the story-driven levels. Well done!