Why do video games have to be art? Why can't they simply be games? Too many games have a fatal flaw in even attempting to be art--they have graphics and music and writing and so forth, but the game qua game is an afterthought. "First-person shooter" is basically one game, and aside from updating the graphics and storyline there's no evolution. Because everyone wants video games to be "art", or to be like the movies. RPG's are even worse.
Forget the art and make a good game.