This is a dungeon-based game full of oppressive atmosphere. You will delve into the maze filled with monsters, collect, combine and upgrade weapons, and fight for a glimmer of hope in the successive waves of attacks.

The battlefield crumbled, flames engulfing the ruins. The massive hammer was about to fall, and the sword blade had already cut through the darkness - this was a life-and-death confrontation where the small could defeat the mighty, and it was also the intense BOSS battle that players would repeatedly face in the depths of the dungeon.

Whether you prefer the aggressive melee warriors, the strategic ranged mages, or the agile stealthy assassin archers, you can all find a partner that suits you here. After selecting your character, you will unlock exclusive storylines, equipment combinations, and combat styles. Every choice will shape a unique gaming experience.

In this endless abyss without an end, players will control their characters to fight against powerful bosses and the ever-changing waves of monsters, constantly testing and pushing the limits of their strongest BD. During the battles, they can collect soul crystals, which can be used to purchase basic weapons. The basic weapons will gradually be upgraded to create even more powerful weapons. The ultimate goal is to challenge the global ranking list and reach the top of the survivor's list.

In the deepest part of the Dark Bone Prison, ancient evil is awakening. Each level of the dungeon is testing your limits, and the final boss will tear apart all those who are lucky enough to survive. Equip your items, level your skills - then walk through that door and see if you are torturing the demons or finding a new skeleton in the pile of bones.