UPDATE: Patch 2.1.6 will launch tomorrow, Feb. 4, following maintenance from midnight to 3 a.m. PST.

Frogster announced today that the gates of the Demon Stronghold will open with the upcoming launch of patch 2.1.6, giving players the opportunity to face the mighty Demon Lord once and for all. The new raid dungeon will be available to 12 high-level players and is located in the Naga Acropolis.

Players will have to defeat four bosses as they make their way to the throne room to get their shot at the Demon Lord. Of course, the final battle won't be easy: "Groups have to survive four phases of battle, overcome sworn helpers of the evil lord and fend off flying swords."