Purgiae is a setting in Metal Shadow. It first appeared in Metal Shadow Prelude chapter fifty-one. It is a realm between life and death, and the second of its kind. Its counterpart is Ende. According to Gineden, everyone who dies in the world comes to Purgiae, and those who die in Purgiae are reborn in Ende. In Purgiae, people can choose one of two doors; one which leads to heaven, the other which leads to hell.

It is in Purgiae that Gineden casts her rebirth spell on the nine individuals she wants to kill Godden.