Really sad that people think "nerdy fantasy and dragons" when they think about role-playing games. Case in point: through the brilliant Jason Morningstar I just learned about a fascinating new RPG about dying languages. It's called Dialect and it's on Kickstarter right now.
From what I understand it's about inventing the story of a small, isolated community that has their own language/dialect, invent words for that language and see the community change over time, the language evolve, and, finally, the language die. Of course, this can be placed in any setting (a jungle, another planet, ...).
The linguist in me is super-excited. I think I'll buy it, even if I may never get the chance to play. I'm sure reading the book is going to be worth the price!