I think Henry Cavill was a big part of why it grew in popularity. As Henry Cavill's career and profile grew, he did not shy away from putting his favorite nerdy

I think Henry Cavill was a big part of why it grew in popularity. As Henry Cavill's career and profile grew, he did not shy away from putting his favorite nerdy interests in front of the media spotlight, which included Warhammer. That obviously caught the imagination of the internet crowd who ran away with it to create all sorts of memes with Cavill as the God Emperor, or "Behold the Omnissiah!" memes. That naturally sparked the interest of a lot of bystanders, and credit where credit's due, Warhammer lore is deeply enthralling.