It is a less of a game and more of a shitty 3D social networking site. It is loved by emos and anime/naruto lovers because of how you get to make your avatar thing look. But if you want to tap that then...go for it.
lolwut?
Anyway, Gaia's not a game. It has games, but they all suck. You are better off playing NeoPets. Heck, even Newgrounds is better when it comes to minigames.