The Börkpocalypse is a series of comics where Swedenball has somehow made himself viral and infects other countries. The series was firstly created by redditor Sharpeye583 after his first comic was well-received. Other redditors read his work and began making their own Borkpocalypse comics.
DickRhino saw what they were doing and deemed it cancer or something, so. Sharpeye reacted by making a new subreddit, /r/Borkball, where other redditors are permitted to submit comics that were/would be removed from /r/polandball (as long as they follow what they dub "the basic rules of Polandball".