Hey, thanks for the remarks, these are really good ideas!
I'm really happy that you picked up the lore - I like to throw in a bit of background story in my games. So a fun fact - a demiurge was originally a good entity (in Platon's view) that is like a god-craftsman/creator being. Then it was skewed towards an evil being that does not care about the world it created (maybe due to Christian views, where the God should take an active participation in the world's/humanity existence).
Anyways - glad you liked it! And the "great flood" idea is awesome!!!