Just thinking about it casually, maybe it's not true.
1. Regarding the protagonist, the initial attributes are floating, and the equipment is random. In fact, Diablo has done a good job in this part;
2. Regarding the opponent, each creature is a thread. At the beginning, the attributes of mobs are random, and the types are divided into regions. After that, each mob will grow up and may become stronger, weaker, injured, dead, and reborn due to various events. The player is just a self-controlled creature participating in it. In this case, this is more like another world.
3. Regarding NPCs, NPCs will also be replaced by newly born NPCs who are more qualified.
4. I will add it when I think about it. Everyone who is interested in random games is welcome to communicate and brainstorm together, haha.