d4:
A settingless core book could be fine, except that every ruleset implies things about the world it describes by how the mechanics work and what they cover. D&D has wavered between describing a pretty specific world with set metaphysics and trying to cater to heroic fantasy in general. You'd have to be very careful that the rules worked with your world.
We basically agree about sourcebooks, right? It's rules-heavy supplements (outside obvious stuff like mass battle rules) that I don't see the appeal of.
A settingless core book could be fine, except that every ruleset implies things about the world it describes by how the mechanics work and what they cover. D&D has wavered between describing a pretty specific world with set metaphysics and trying to cater to heroic fantasy in general. You'd have to be very careful that the rules worked with your world.
We basically agree about sourcebooks, right? It's rules-heavy supplements (outside obvious stuff like mass battle rules) that I don't see the appeal of.