More ways to spend Murk, more interesting Relics, more characters to choose from etc.
I also think that it needs more variation. Each run feels the same, and I'll make the same decisions regardless of the situation because the only variation is different characters my team picks. Most roguelikes have a way to make different builds based on the random loot you get but in this one, if I pick raider, I'm going after the biggest sword with the biggest damage number regardless of what drops
