World of Warcraft (Vanilla)
Vanilla introduced a living Azeroth with quest-driven leveling, 40-player raids like Molten Core and Blackwing Lair, and faction identity through Horde vs Alliance. The pace was slow and social; reputations, professions, and five-man dungeons defined the journey as much as endgame.
Set the template for modern MMORPGs with class roles, talent trees, and world PvP.
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