Return To Castlevania... | Dead Cells:

You must have completed at least three runs (and unlocked the hanging flasks in the Prisoner’s Quarters).

Explore the Prisoner's Quarters to find Richter Belmont, who will lead you to a staircase. Dead Cells: Return to Castlevania...

Descend the stairs to enter the Castle Outskirts . DLC Biomes & Progression You must have completed at least three runs

A dedicated boss arena where you face Death . Dead Cells: Return to Castlevania...