Library

Take in alien residents in a fallout shelter and build an underground kingdom. "Half-Life, Crysis, Castlevania, Overwatch, Devil May Cry, Prototype, Resident Evil, Bayonetta, Halo, DOOM, Diablo, Serious Sam, CrossFire, League of Legends... Have you started to contain residents?"

This long repertoire of cultivating immortality goes through thousands of times, a mountain of corpses and a sea of ​​blood.