Or naming is a language game that interpenetrates many language games. Probably it amounts to the same thing. In any case, naming is a kind of sub-routine in many language games & as Wittgenstein points out is often preparatory to other human activities using language. And then goes on to point out the inadequacy of naming as a model of language--either language acquisition or language use--in remark 28.
Christopher Robinson & Joseph Duemer read Wittgenstein's Philosophical Investigations