This is awesome! Though the control scheme and ProcGen remind me of Nuclear Throne, the game feels more laid back -- I think the music has something to do with that vibe. Really impressive how much stuff you got done. I ended up hitting lvl 30 by playing super cautiously, powering up my sword attack, and making heavy use of cover.
I did notice (I think definitely in the later levels?) that I often had a lot of extra med kits lying around that I didn't need to use.
I wouldn't mind reading/hearing about your dev workflow if you have or are writing about it at some point in the future.