Popgoes 2015 was an original version of Popgoes game story. It was later changed into what is now in the released version of Popgoes. The Popgoes lore went through a couple of major changes before the game was released. The original lore is being called Popgoes 2015, while the final version is called Popgoes 2016, as the main changes were established around the end of 2015.