Destiny isn't. It's kind of a bit of everything. FPS, this is the genre that bungie went with and classified Destiny. It is true, all of destinies gameplay is FPS RPG, you're playing a role of a guardian who was awaken by his ghost to go on this epic *dlc* quest. MMO, again, bungie didn't classify it as an MMO, but it has many aspects of one. Very similar to one.