I'm doing an odd take on the genre and i'm putting together a demi-gods generator based on the Greco-Roman Titans.
Fundamentally different in outlook than the Olympians, the Titans were beings of awesome power that represented immutable concepts (Time, Mortality, Memory) rather than the natural representations of the the Olympians (Storms, Earthquakes, War, etc) and as a result their off-spring are more akin to Yog-Sothoth's spawn in the Dunwich Horror than they are Theseus or Heracles.
I'm done with the write-up, just getting art and formatting together.