When Blizzard tested Diablo III's Inferno difficulty, it ran detailed testing to ensure it found an appropriate challenge level - and then threw that data straight out the window in favour of turning the dial all the way up.
"Internally, we had this super hardcore test group - we've got a lot of hardcore players at Blizzard - that tested Inferno, and we got it to the point where they thought it was challenging enough," Blizzard's Jay Wilson told IGN.
"Then we doubled it. Because we knew, no matter how good we are, our players are gonna be better. We focussed on making that as difficult as we could make it."
Wilson said the hardcore "can absolutely solo" Inferno, as the game scales depending on the number of players there are, but that multiple skilled players co-ordinating abilities will have an easier time of it.
"The ability to combine different classes together is one of the things that makes Inferno really interesting," he noted.
Diablo III releases on May 15 for Mac and PC. Hit the link above for more tips on how to survive Diablo III's ultimate difficulty, which is accessible only to level 60 players.
Thanks, Evil Avatar.