Mature Games Not Rated M
Being rated M has equal chances of being a well-done, taut story with interesting ideals or a poorly done, shitty game that's full of tits and swears (and everything in between, of course). However, it's not just games with that M on the cover that deal with such things. T and below have their own messages to send, so here's a few of the better ones.
Your own suggestions, interpretations and corrections are welcome.
Just remember: This isn't about the most violent of these games. They're the ones that have the themes and storylines that seem mostly delegated to M rated games these days, but without all that pointless dismemberment.