http://bloody-disgusting.com/news/3263576/diablo-iii-lifetime-sales-surpass-14-million-across-all-platforms/

Despite a rocky launch and a bit of controversy surrounding its always-online requirement and auction house — the latter of which will be gone come March — Diablo III has sold over 14 million copies since across all platforms since its launch last May. That translates to a lot of people that have scoured its dungeons in search of epic loot, and it’s a number that will only grow when the game arrives on the PlayStation 4 next year. Its first expansion, Reaper of Souls, will follow next year, nearly two years after its initial release.