[coolestuk]

I don't think that Wittgenstein's observations on "language games" has been absorbed and taken for granted. His interest in games was part of his exposition of the nature of universals (forms, essences). Considering that for at least 25 years students in the humanities (social sciences, media studies, literary studies) have been force-fed a simplistic 'anti-essentialism' as a political doctrine, I'd say that's proof that Wittgenstein's work is almost completely unknown outside of Philosophy Departments.

Sadly most of philosophy is unknown outside those walls. Ludwig may not have found that so sad - he saw philosophy as a kind of mental disability, and himself as the doctor.

Probably the best introduction to Wittgenstein is Janik and Toulmin's "Wittgenstein's Vienna". Even if one decides that philosophy is a fly in a bottle, there's fascinating stuff in that book on forgotten greats like Karl Kraus.