Okay here's my thought process on this let's say a guy dies and get reincarnated into a cultivation world and let's say he lends into the center of a forest with a bunker and now he have to survive inside said bunker that can evolve endlessly as different preachers cultivators almost consciously try to enter the bunker only a nap failing through one reason or another and would it be interesting that the bunker uses technology so as a result most normal ways are in infected to it like one cultivator try to use runes to crack it only to realize this thing doesn't even have a single bit of ruins on it oh I almost forgot he can upgrade the bunker bye surviving inside said bunker as different challenges well up here to test his mind of choosing which is the best option for his survival since the better he survived the more points he will get