Yeah, the idea is really fun.
Only thing is, balance feels a bit wonky right now.
I think early floors should probably be more limited in monster and trap rarity, and the stronger or nastier stuff should come later as you go deeper. Right now it feels like you can get some really busted things way too early. Stuff like Laser Grid and Iron Lung already feels super strong, and if you add spiders on top of that it just feels kind of hopeless for the adventurers.
The soul thing also feels a little weird at the moment. Monster rooms almost feel like they punish you for using them. Maybe traps could cost gold per trigger or monster rooms just shouldn’t cost souls, because right now it feels easier and stronger to just spam traps.
Also, anything that does flat damage and throws on a debuff like bleed or poison feels way better than basically everything else. Those traps just seem to do too much.
For example my level 10 floor:
I’ve only seen one guy even reach the golem, and he had like 6 HP left and just died from debuffs right after anyway.
All in all keep the work up, i am stoked to see where this is going.