Does GURPS need original-setting world books?

[Cybren]

Originally Posted by maximara

The thing is there really weren't "default assumptions of a D&D world" unless you mean add in magic items that shot your game balance to Outer Planes, us plot devices to nullify about half the party's magic, and throw in several things dead set to kill the party regardless of how much sense it made.

D&D worlds all start with the same basic assumptions thanks in part to the rules and thanks in part to expectations from other settings.