Set in modern-day Tokyo, The Lost Child is a follow-up to 2011's El Shaddai: Ascension of the Metatron.

The game was removed from all digital platforms in the European, American, Asian and Oceania regions on the 18/6/2023 and can no longer be purchased.

In May 2013, it was announced that Sawaki Takeyasu, creator, director and lead artist of El Shaddai: Ascension of the Metatron, had purchased the rights to the El Shaddai IP from UTV Ignition Games with the intention of expanding it under his newly-formed development studio Crim.

[1] In 2017 at a Tokyo Sandbox presentation, Takeyasu teased a "major announcement" relating to the IP to be made within the next two weeks,[2] which was officially revealed ten days later in Famitsu as The Lost Child, a role-playing game for the PlayStation 4 and PlayStation Vita set in the El Shaddai universe.

[3] It was announced in August 2017 that Sony Interactive Entertainment would be publishing and providing localisation of the game in Chinese territories.