Atlanta-based artist Emily Lemay, AKA yamelme, does minimalist posters. She does them really well. She's done a whole series based on video games, in fact—from the Witcher to Far Cry. This is only a small sampling of her work, so make sure to visit her DeviantArt page to take a look at what else there is.
Video Game series by yamelme [DeviantArt, via theomeganerd@Tumblr]