Some food for thought for you viewers...
Whether a game is actually mature or not is highly subjective. It is impossible to quantify an abstract concept such as maturity into something simple and easily discernable... Especially considering each and every one of us may have differing views on what maturity actually is. An overlap of beliefs is certain, but again, it is very hard to pinpoint the exact definition of a "mature game." In fact, this is extremely similar to the "What is a hardcore gamer?" thread made some time ago. But let me move on to something that Garlyle made me mull over for a few moments. He mentions something about "mature themes," and how it can be the best example of "mature gaming." From what I can understand from his logic, "mature gaming" strays away from the importance of the gameplay and instead delves into the more creative aspects of the game - the depth of the characters in the game and the scope of the story/plot that forms the game. Garlyle even admits that this variety of game tends to place the gameplay as secondary... This made me wonder.
Many visual novels I have played present to us the players at times an extremely deep and wonderfully told story (Saya no Uta, Planetarian, Ever17, just to name a few), and indeed, these visual novels fit the criteria that Garlyle has mentioned. Furthermore, these visual novels tend to include "mature content," as well, advertised to only be played by non-minors - those who are over eighteen years of age (that didn't stop people like me from voraciously playing and appreciating those games anyway). However, many people I know seem to dismiss the idea that such games could ever hit the core of a "mature game," simply by the mere fact that it presents scenes of a highly sexual nature, and they even cite examples of games made from a sole entertainment perspective (The Lightning Warrior Raidy and Do You Like Horny Bunnies? series, the Welcome to Pia Carrot! series, and even the non-H inclusive Tokimeki Memorial series) which present knee-deep themes at best. Just as I was typing this, someone from this very here board mentioned this on IRC:
18:07:16 (BulgariaOnmyoji) mature games should be mature in mentality, sex games are for teens
What exactly constitutes a "mature mentality?" Can this "mature mentality" be found in teenagers? Are sex games solely for teens? We have to ask ourselves these very questions in order to consolidate a consensus within the community on what a mature game actually is, for us, both on a surface level and a personal level. Furthermore, what is the implication of a certain demographic in society playing these "mature games?" We need to answer some very important questions if we wish to clear this up. Going back to my visual novel example, do these games present a playing field conducive to a "mature mentality?" Many visual novels, especially those of the eroge variety, don't really take themselves very seriously, aside from great works like Saya no Uta and Planetarian (which by the way I recommend HIGHLY to people starting to get into the VN business - both are readily available in English). If not, can other video games produce the same playing field conducive to a "mature mentality?" If so, can we consider these games "mature?" Why? What quantifies "maturity" in a video game?
It's all very hard to say for certain, but I hope people at least take the time to think about it.