The Fall of Naxxramas (25 player) is an account-wide meta dungeon & raids achievement earned for defeating every boss in Naxxramas on 25-player mode.
See also[]
Patch changes[]
Patch 8.3.0 (2020-01-14): Now account-wide.
Patch 3.2.0 (2009-08-04): Renamed from Heroic: The Fall of Naxxramas to The Fall of Naxxramas (25 player).
Patch 3.0.2 (2008-10-14): Added.