Game froze when I actually beat it by killing the guy, sad that there isn't a victory screen. Interesting that I had to save up to 700 beforehand and get 4 necromancers down before things scale, eventually getting 400 necromancers becoming completely balanced.
Yeah there’s a victory screen but it seems to freeze often on the html5 version of the game. We did not test it much (because it’s a game jam project we did in two days) and this probably won’t be fixed. However we might develop a more complete and less buggy version of this game at some point. Thanks for the feedback :)