About that difficulty curve, it's gonna get a lot better once I cut the stat gain on level up from 3 to 2 next patch, and allow people to distribute one of the points as they want. Let's see if that makes keeps it fun for the entire run!
Have you tried the Hard difficulty? I've been thinking about adding an even harder unlockable difficulty with the metacurrency. I don't know if anyone will be capable of beating it though.
P. S. Thanks for the comments! I get a more attention and feedback from the Demo Day pages and other sources like Youtube and Twitch, so it's not so bad. Wait until I reveal the game's release title and go harder in on spreading it around!