The Great Age of the Catacombs

Cave flow, but not burrow flow at all. After the vision went dark, the global cave exploration game suddenly appeared. Xu Tuo and many people on the earth were sent into the dark caves and were forced to go on a series of strange cave exploration journeys... However, as the journey continued, the sudden disappearance of the system made him realize that this so-called cave game was just a cover, and there seemed to be a deeper secret hidden behind it all...