Oh idea! What about permanent upgrades that stay across all runs? Maybe they cost coins. They could give new essence upgrade paths or elemental damage or something! BTW love this game and I am looking forward to progress and development. Ads will get more people to it later on in the development too.
You need to add some sort of mass building thing, where you don't have to keep placing and then choosing the same thing and them placing etc., sort of like a copy and paste.
jumping into a pit at a bottom floor kills u instantly. Also pro strat on the crystal golems use reflect and the projectile will bounce back and forth until the enemy is hit lol
Planned :) If you are interested, you should really join the official discord where most of the discussion happens