The Scourge Invasion. “Naxxramas hangs over the Plaguelands, and its master waits in his frozen chamber. His lieutenants step out of the alcoves where the abominations stand, and when they fall, Kel’Thuzad rises from his throne.” Naxxramas is zone 12 of 12, and its final boss is Kel’Thuzad.
How to unlock Naxxramas
Naxxramas comes after Gates of Ahn’Qiraj in the game’s zone order. The zone menu keeps a zone locked until you defeat a named final boss; in this order that is C’Thun. Surviving until that boss arrives is not enough; the menu asks for the kill. It is the last zone in the game’s order. Opened zones are saved per class.
Bosses in order
| # | Boss | Base health | Arrival line |
|---|---|---|---|
| 1 | Anub’Rekhan | 4,600 | “Ahh... welcome to my parlor.” |
| 2 | Noth the Plaguebringer | 11,500 | “Glory to the master!” |
| 3 | Patchwerk | 21,000 | “Patchwerk want to play!” |
| 4 | Sapphiron | 26,000 | “Sapphiron rises from the frozen lair, its wings filling the hall with frost!” |
| 5 | Kel’Thuzad · final | 58,500 | “Your petty magics are no challenge to the might of the Scourge!” |
Preparing for Naxxramas
Kel’Thuzad has 58,500 base health, against 55,500 for C’Thun. Bring the talent points you earned on the previous zones, and consider lowering enemy health in Run Options for a first clear. Classes with a death-save talent are listed in the tier list.
Questions
How do I unlock Naxxramas?
Naxxramas follows Gates of Ahn'Qiraj in the game’s zone order, so the menu should ask for C'Thun, the final boss of Gates of Ahn'Qiraj.
Who is the final boss of Naxxramas?
Kel'Thuzad, with 58,500 base health in the v0.103.1 game data.
How many bosses are in Naxxramas?
Five: Anub'Rekhan, Noth the Plaguebringer, Patchwerk, Sapphiron, Kel'Thuzad.
Sources & scope
Zone and boss records read from the original game’s v0.103.1 (671c6f5e) WebAssembly build on 2026-10-20. The zone record holds no unlock requirement: the order is the order the game stores its 12 zones in, and the zone menu’s lock text names a final boss. In v0.91.2 each zone opened after the final boss of the zone before it; we have not checked in play that this still holds with Un’Goro Crater, Scarlet Monastery and Naxxramas added. Boss health is the base value stored in the game data. The zone, run options and level change what you meet in a run, and we have not measured them.
