A story like reveared insanity where they create a mini world while cultivation and nurture it. This sounds wierd but i loved the cultivation in reveared insanity and thought it was intresting.
...not a cultivation novel, and its an OEL novel but in the last chapter i remember, The Legend of Randidly Ghosthound had a 'mini world' that the MC nurtures edit: i joined just to post this lol
I have read many stories like that, but in my opinion, there are only two novels (no one of them has been translated) that write this properly (the mini world do play a role, not just a large bag): - The Ultimate Monster Tamer (Gu Daoist Master): from the same author of Reverend Insanity - Fight For The Top On The Path To Immortality (Zero Destiny)
Don't know about reveared insanity but in terms of cultivation and world creation... Tales of Demons and Gods End of the magic era This are some good ones I think