I understand that the first word in the GURPS acronym is
Generic and therefore its supplements are broad overviews of any given topic or genera but I have always felt that GURPS suffered from a lack of identity in the market due to not having any iconic original-setting type world books.
D20 has
Ansalon,
Eberon, and
Grey Hawk, and if you want to go back a couple of editions there was
Dark Sun,
Planescape, and
Spell Jammer.
There are 68+ pages of
Licensed properties I would like to see. Licensed properties can be tricky legally and/or expensive but there is a clear market for setting type world books. Why doesn't GURPS have original-setting world books?