upgrade tree was nicely done, though once you figure it out its just sort of a matter or doing it. kinda has that solving/executing dynamic that some puzzle games have where once you figure out how to do it, theres a long "execution" which can be boring/detract from the puzzle aspect. and if you want to try a different solution, it takes a long time to test that theory. you can take advantage of that if you have a fun active gameplay mechanic, but since the ui navigation was somewhat clunky, and the main mechanic was just clicking it was sort of frustrating. really nicely balanced/themed game overall, just that solving/execution dynamic was a bit off. needed something interesting to keep the players busy imo. thanks for entering!