Diablo III

Diablo III launched on May 15, 2012 into the infamous Error 37 server meltdown and shipped with a real-money auction house that warped the entire loot loop Blizzard had designed. The comeback — patch 2.0's Loot 2.0, the auction house shutdown in March 2014, and the Reaper of Souls overhaul — rebuilt the game from the ground up. Blizzard then supported it for over a decade: 29 themed seasons with new content, the Rise of the Necromancer pack in 2017, and seasons still cycling in 2026. The recovery was genuine, but the disaster was self-inflicted and the auction house took two years to die.

• Emergency server maintenance and login queues stabilized the Error 37 launch within days, but the auction house — the defining design failure — lingered nearly two years before shutdown
• 29 themed seasons of new content (2014–2023), the Necromancer pack in year five, and seasons still running in 2026 — fourteen years of maintained servers
• Blizzard publicly admitted the auction house 'undermined Diablo's core gameplay: kill monsters to get cool loot' and published detailed dev blogs and BlizzCon retrospectives on the recovery
• Player demands for an endless endgame produced Adventure Mode, Nephalem/Greater Rifts, and account-wide Paragon; the long-requested Necromancer returned as a full class