Civilized Cemetery

When humans first discovered the Cemetery of Civilization, they thought lost technologies were buried there. It wasn't until someone entered it that they discovered—— Every cemetery is a world that has perished. Entrants will not look for treasures, but will become a member of that civilization, and in a situation of incomplete information, limited time, and conflicts of interest, make every choice that determines the survival of the civilization. If you fail, you will remain in the cemetery forever. If successful... You will find that humans may also be the next cemetery.