According to statistics from SuperData Research, World of Warcraft still dominates the MMO market with 36% market share. The game raked in just over a billion dollars in revenue in 2013, putting it well ahead of its nearest competition -- $253 million for NCSoft's 1998 title Lineage. The ranking of top subscription titles suggests that MMOs need staying power -- WoW is nearly 10 years old and Lineage is 16 -- and a strong Asian presence -- the top 3 are all big titles in Asia -- to sustain them over the long haul.
However, even though WoW continues to pull in strong subscription numbers, the industry has seen the subscription model declining sharply while microtransaction revenue has been on an upswing. With both a healthy subscriber base and its own microtransaction strategy, WoW seems prepared to succeed no matter which direction the industry goes. However, the overall subscription trend begs the question: will we ever see a free-to-play version of WoW? Blizzard has said no, and with subscription stats like this we can see why.