EverQuest II

A Theory of the MMO

The evolution of the massively multiplayer online (MMO) genre is characterized by a shift from diverse, experimental design toward a rigid, content-consumption model dominated by the "DikuMUD" template.

• The MMO genre shifted from experimental, player-driven social simulations in the 1990s to a rigid, quest-based 'DikuMUD' template popularized by the commercial success of World of Warcraft.
• The industry-standard 'content treadmill' model forces developers into a cycle of constant material production, leading to 'mudflation' and diminishing returns on investment.
• Core MMO mechanics like crafting, housing, and world modification have migrated out of the traditional genre and now drive the success of modern survival-crafting and sandbox titles.