Oh, trust me, I wanted to put in this big complex system of scaling the damage, explosions, etc. But when I realized how much work it was gonna be , I decided instead it would be a lot more fitting to keep a sort of old-school simplicity where you don't even really need numbers or health-bars to tell you a bunch of information; just a little bit of playing will give you the intuition to fill in those numbers. Chances are I will work on this again in the future and I'd probably things like levelling, skills, etc.
Anyway, thank you for your thoughts, and I'm glad you enjoyed it!