SOME SPOILERS AHEAD! YOU’VE BEEN WARNED!
Herobrine is an interesting community created Minecraft myth that through the power of mods has since been turned into reality. The myth started with Herobrine as a non-player character appearing in single-player Minecraft games. Like many others, this story starts on creepypasta, although the earliest topic about Herobrine is from the Minecraft forums.
Here a player claimed to have seen a blurry figure in the distance during one of his single-player sessions of the game. The person claimed that Herobrine appeared with a default player skin and glowing eyes, and would affect things within the play session like building structures or harvesting resources. The myth circulated for a while gaining huge traction until finally Notch the creator of Minecraft addressed it in a tweet saying,
Adding more fun to the myth though was a patch for Minecraft on May 31, 2011. The note for patch 1.6.6 had something very interesting in them. At the end of the patch notes it listed, “*Removed Herobrine.” Was this just a fun joke from Notch? Was Herobrine actually something the development team included as a creepy easter egg in the game? We may never know, but the Herobrine myth created one of the most popular memes ever in the Minecraft community.