It's LoL, actually. By a long shot.
By Tim Colwill on April 12, 2013 at 10:24 am
Yesterday, a company called DFC Intelligence produced a report which stated that DotA 2 was the most-played “core” PC title in the West, passing League of Legends in popularity throughout the first quarter of 2013. DFC quoted a number of source including XFire, and went on to claim that MOBA players far outweighed even MMO heavyweights like World of Warcraft.
Overnight, however, Riot have challenged these findings. A Riot spokesperson revealed that League of Legends sees “over 500,000 peak concurrent players every day on just the EU West shard,” which doesn’t even take into account the number of US and China players. Meanwhile, Valve’s Steamgraph shows that the highest all-time number of DotA 2 players is 325,879 — vastly below that offered by LoL.
“You can see how we would have some issues with the accuracy of this report,” said Riot’s spokesperson.
DFC — who are not actually affiliated with Valve — claimed that the discrepancy was due to them only tracking “key Western markets”.
Source: Games Industry International