Almost Infinite Castle

During a peaceful walk in the countryside, an ominous aura starts to fill the air.  Curious, you walk closer only to find a void swallowing all light it touches.  Sitting in the center rests an unfinished castle.  Unsure of what to do, you venture deeper in.  Quickly surrounded, the host of this castle waits for you at the top.

Exit the elevator to choose from three selectable classes.  Loot ghosts along the way or directly challenge the host to try and end the nightmare.