In fact, World of Tanks generated more ARPU than any other major F2P title, according to Superdata. "There's World of Tanks, which has a monthly active user base of around 9.1 million and makes $4.51 per month per user. And there's League of Legends, with 58.5 million average monthly actives over the past twelve months, and a $1.32 spend per user. Five times the audience, but less than [a] third of the earnings per player," Superdata says.
After WoT, the top five includes Team Fortress 2, Guild Wars 2, War Thunder, and PlanetSide 2.