Ah, perhaps a slight miscommunication.
though I do enjoy traditional roguelikes, I’m not looking at the stakes or the intensity, but rather the kind of itch that’s being scratched in diabolikes, and it feels a lot more completionist/procedural in nature than it does adversarial.
Both are good, but dressing one up as the other can lead to an underlying sense of disappointment.
I dunno if it even needs to be difficult; even a bit tactical would change the nature of the thing. As it is the mobs in these things tend to be mindless converging waves; what if they set up set pieces, ran for help, dived for cover, used supporting fire etc etc?
Also perhaps overambitious, but what if the difference between low and high level enemies wasn’t their HP or damage, but how tricky and organised they were? What if leveling up didn’t make number get big, but instead gave you more options in a fight?