There are tons of platformers, RPG, shooter, and adventure games and series, but almost no stealth games. The stealth game genre hasn't been touched very much, and seems like a goldmine of potential. The main sleath franchises that I can think of are metal gear and splinter cell.
Although the batman arkham and sly cooper games have stealth elements, it's not enough to be considered a stealth game for me. Assassin's creed is in undecided territory for classification. If you are looking for a good stealth game, Aragami is a game I saw a single YouTube ad about years ago, and it was absolutely worth buying. Highly recommend. If anyone could recommend me some good stealth games, please comment.