This mod has been conceptualized back in October as dedicated thing for 10th anniversary of Pixel Dungeon becoming free and open source software, but only now I dedicated the time to start making it. The core idea is that I am not the one, who design the features and new items, it’s people from community of this game!
Currently this mod has 20 unique features from ideas of 21 people on PD’s discord, all listed here: https://gist.github.com/TrashboxBobylev/98aa9c667af73c56bbae91413fe22a24
I think the rat king curse is a bit strange, since it not only dooms the run to fail and has no counter, using a scroll of rage, terror, or retribution can trigger it if it spawns near the boss room, which it often does. Maybe have the rat king turn hostile and have better stats than sewer rats?