Feels like the 3rd or 4th armory level is possibly bugged? All I know is I was doing less damage and taking more damage and not getting as far into the progression after the one armory "upgrade".
The game "ends" once you beat the 5th dream cycle, but you can keep going if you'd like. Things might get really hard or really easy, I haven't tested.
This game was made for the 2nd annual hexcode showdown game jam. It was made by Anthony Lawn and Haley Paty.
The game uses Vue for rendering and break_eternity.js for convenient math functions (and a much higher number limit, although the game doesn't take advantage of that).
If you're having display issues, you can also play at https://thepaperpilot.org/dream