Il gioco è basato sulla 1.12 (2006) ed è marchiato 1.13.

I contenuti (dungeon, raid) verranno sbloccati in fasi:

  • Phase 1 (Classic Launch)
  • Molten Core
  • Onyxia
  • Maraudon
  • Phase 2
  • Dire Maul
  • Azuregos
  • Kazzak
  • Phase 3
  • Blackwing Lair
  • Darkmoon Faire
  • Darkmoon deck drops begin
  • Phase 4
  • Zul’Gurub
  • Green Dragons
  • Phase 5
  • Ahn’Qiraj War Effort begins
  • Ahn’Qiraj raids open when the war effort dictates
  • Dungeon loot reconfiguration: Tier 0.5 Dungeon gear, Relics, drop rates and location changes
  • Phase 6
  • Naxxramas
  • Scourge Invasion