- The Apocalypse Flag was released on December 17, 2012, along with the Apocalypse Habitat, and the Apocalypse Dragon.
- On December 21, 2012, the Apocalypse Flag was decorated with holiday decorations for a limited time.
- On February 1, 2013, the holiday decorations on the Apocalypse Flag were removed.
- The Apocalypse Flag's purchase price of 2,012, is likely a reference to the year of the end of Maya calendar, thought by some to be the end of the modern world.
- The Apocalypse Flag's description mentions, "ouroboros". This is likely a reference to Ouroboros, an ancient symbol depicting a serpent or dragon eating its own tail.
- The design on the Apocalypse Flag depicts an ouroboros, a dragon eating its own tail.