League of Legends' revenues for 2013 totaled R6,787.56 ($624) million, making it the second top free-to-play game in terms of earnings, a report from SuperData reveals.
Coming in at the number one spot is CrossFire, a South Korean free-to-play first-person shooter which brought in R10,409.77 ($957) million in revenues during 2013. Tencent, which owns a majority stake in League of Legends developer Riot Games, publishes CrossFire as well.
Valve rounded out the top 10 list with Counter-Strike Online, which brought in R1,316.18 ($121) million, and Team Fortress 2 at the number nine spot bringing in R1,511.97 ($139) million.
Electronic Art's Star Wars: The Old Republic, which added a free-to-play option in 2012, took the number eight spot with a little more than Team Fortress 2, and less than Blizzard's World of Warcraft, which generated R2,316.91 ($213) in microtransactions alone (not counting subscription fees).
Last week we also reported that Blizzard was beefing up its microtransaction efforts in World of Warcraft, when it posted a pair of new jobs on its "Strategic Initiatives" team, calling for a director and manager for the company's new "Microtransaction Strategy" unit.
World of Tanks was fourth on the list with R4,046.43 ($372) million.
Overall, the digital games market in the United Stated (including social, mobile, DLC, free-to-play, and subscription) grew by 11 percent, reaching a total of R127.27 ($11.7) billion in sales during 2013. Mobile represented the biggest portion of the market with 26 percent, but free-to-play showed the greatest growth, increasing by 45 percent over last year. Meanwhile, revenues from social games dropped by 22 percent and revenues from subscriptions dropped by 21 percent.
