Shin Megami Tensei III: Nocturne is a role-playing game for the PlayStation 2. It is the third main game in the Megami Tensei series. Shin Megami Tensei III was released many years after Shin Megami Tensei II, and was the first Megaten game in the series to be released into the United States using the "Megami Tensei" name.
A director's cut version, Shin Megami Tensei III: Nocturne Maniax, was also released in Japan. This version has additional features such as the Labyrinth of Amala (an optional multi-layered dungeon), a sixth ending, and Dante from the Devil May Cry series. This is also the version that was translated and released in North America as Shin Megami Tensei: Nocturne. This version was also released in Europe in June 2005, with the addition of French and German language options, renamed to Shin Megami Tensei: Lucifer's Call due to trademark issues.
The player takes control of a half-human half-demon silent protagonist whom the player names. The protagonist is often referred to as the "Demi-fiend". As with most Shin Megami Tensei games it takes place in after an end of the world event called the "conception".