A fictional currency used in some Maxis games, represented by the legal "subsection symbol," "§".
It is, perhaps, a reference to a Neal Stephenson
short story, The Great Simoleon Caper, in which an online currency is developed called the Simoleon for use in "the Metaverse," a virtual, networked reality, as
established in Stephenson's oeuvre.
It may simply be a reference, however, to an uncommon
colloquialism.