Uru: Ages Beyond Myst is the fourth game to be released in the Myst (series) and the seventh chronologically. It was developed by Cyan Worlds and released in 2003. It is considered to be a spin off of the main series. Uru: Ages Beyond Myst also received two expansion packs: Uru: To D'ni and Uru: Path of the Shell and was later packaged with them both under the name Uru: Complete Chronicles. The game was released with a multiplayer side, Uru Live, which has been rereleased and cancelled several times since 2004.