Sic Mundus is a secret society of time travelers that is already established in Winden in 1921. The name is a reference to a quote from the Emerald Tablet, "Sic mundus creatus est – Thus the world was created." Sic Mundus' headquarters are located in lavish underground rooms accessible via an elevator in the church.
The Stranger and Claudia Tiedemann are against Sic Mundus' plans and are the group's greatest opponents.