I was super skeptical going into this based on the fact that it is an extremely mimimalistic tower defense. Certainly this nonsense has been done before. And at first, those fears are true. Everything is tedious and uninteresting. But then you start unlocking things. The milestones themselves are fantastic. An auto leveler, an auto collector, ways to completely change your build from the start and not lose progress. I think being able to build up to these things really makes it not overwhelming at the start, and feels like these are really powerful and just eases you into the game in a really satisfying way.