The monster tower was a famous inheritance dungeon. It generated billions of platinum of revenue every month, as a large number of awakened enters this dungeon, clear the monsters, and sell the magical beast cores and items they receive inside every day. And yes, the monsters inside automatically spawn after a certain amount of time.
"This is the Monster Tower, created by an ancient civilization. It has a total of one hundred floors and a king's throne. However, no one has reached the throne room. The first ten floors are dedicated to the F-rank awakens. It is filled with 1-star to 2-star magical beasts. The next ten floors are dedicated to E-ranker. It is filled with 2-star to 4-star magical beasts. Similarly, every ten floors, the power level of magical beasts will increase." Elder Zachary explained while remembering his childhood days.
