地下城与古堡-妖怪僵尸的逆袭日记 is a free game available on the iPhone platform. In this game, you play as the last remaining vampire witch, defending the underground castle from the relentless attacks of greedy humans. To withstand their assault, you must activate the castle's most powerful weapon - the underground dungeon. Inside the dungeon, you will find sleeping heroes, powerful guardian towers, and your trusty sword, all serving as the loyal defenders of darkness.

The underground world of the castle is filled with endless mines that provide a steady source of power for the castle. The souls of defeated humans are also collected by the castle, serving as keys to unlock mighty heroes and weapons. The game revolves around the themes of human greed and the ultimate consequences of their relentless slaughter.

With the light on the horizon and darkness dissipating, you will join forces with the underground castle to bring darkness back into the world.