It's a nice fun game
The only problem I found is when playing web, I couldn't resize the screen so I couldn't see some UI elements, and I had to try to open doors randomly, when I felt like I had enough money (not kowing)
One way to improve this (apart from resizing the game on web), is to change the door & chest color when you can open it
And maybe when hovering a new ability it should give a brief description, but it was still understandable, expecially after getting it and seeing immediately what it actually does
Nice work :)