In some surprising news, it appears that Diablo 4 has already made Blizzard more money than Diablo Immortal, which has been available for a year. Activision Blizzard recently revealed that Diablo 4 brought in more than $666 million in sales alone after just five days.While we have no concrete numbers about Diablo Immortal's revenue, it is estimated that players spent $525 million on the free-to-play game in its first year.That's according to data from Data.ai (as spotted by PCGamesN), which estimates that Diablo Immortal's 22-million player base have collectively put more than $525 million into the game, making it the 24th largest mobile game worldwide, in terms of revenue. Read more