To those trying to get Greenlit, some advice.
I've noticed a small trend of games coming on Greenlight listing every genre known to man.
You may think you're being clever, and gaming the queue system to get your game to show up on more peoples greenlight pages, but you are really just hurting your chances. Here is why:
Yes, you are going to considerably increase the number of views. When somebody customizes their queue by genre, it is only a positive check on genres, without any filtering capabilities. That means if I, as a voter, set my queue to just racing games, it will show the most recent games with racing as one of their genres, even if it is a action, adventure, horror, rpg, mmo, free to play, racing, that only has a 30 second racing level that isn't even in the trailer.
So, yes, if you do include 15 genres on your games page, you will get more page views, but more and more of those page views are going to be people less and less interested in your game. Your page view count will mostly only contribute to your down votes.
For instance, if your next racing game has a level up mechanic, that doesn't make it an rpg. If the person looking for the next indie Dragon Quest gets your racing game in their queue, they're going to vote against it. If your adventure game has a vehicle segment, that does not make it a racing game, and the Gran Turismo enthusiasts are going to vote it down.
Please, do yourselves a favor, and look more closely at your game and try and select just one or two genres that you think most accurately encapsulate what your game is about, or where you think your target audience with this game lies.