Another point down for Old World Blues, Fallout New Vegas. The scene was different than the original, involved a fun caste of characters and unique weapons with a purpose.
You could also explore crap--which is what I liked about Point Lookout from F3, but PL was all swamp repetition--in the ruins of pre-war SCIENCE, doing COMMUNIST SIMULATIONS, waving around your little "foot-penises." It was a fantastic time.