As of right now the dungeon seem to be randomly generated hallways or open areas which gets boring quick I noticed on Trello that you currently haven't planned for structures/biomes. I would like to see some structures within the dungeon for example like  camps sites, underground forests, tombs.  

camp sites (structures)

the camps come in 2 forms one as abandoned which is guaranteed a chest and pots that can be broken (pots might have a small creature inside) (which is the common one) and one as occupied (the rarer one) might have an friendly kobold trader (kobold trader that give discounts if you got tf kobold parts?) or maybe an npc to hire as a body guard (maybe its a human npc that you will have to manage its tf rate as well as yours? it will only follow you if you are mostly human?)

underground forest (biome)

in the underground  forests there will be plants the player can pick up, these plants will have different effects from each other IF your head is tf'ed like a bunny head or any other herbivore or maybe a cursed item then you can tell the effects of each plant wither it be a small increase to health or a speed up tf rate. (maybe add a unique creature in this biome?)

The Tomb (structures)

in tomb youll go down it like you would going to the next floor but it will be a dead-end so youll have to return the way you got in. within the tomb youll find chests and pots that can be broken (pots might have a small creature inside) but at the risk of much stronger enemies in the area, the tomb will not be as big as the dungeon but still big enough to explore. tombs are rare to come by the earliest you can see them should be floor 10 or so just to make sure players dont restart just to get a tomb spawn on an early floors.

these are just some idea's I came up with that i think you might like and i look forward to your development.