With over 20 million registered players, Overwatch is a runaway success by any conventional measure. If you're not playing it yourself, then someone you know is, and you likely can't get them to shut up about it. But its most astounding achievement is just how quickly and decisively it went from a gutsy risk on Blizzard's part – a company that has never made a shooter – to a world-conquering global phenomenon. In a single move, Overwatch has both resurrected the team-based shooter and invented its idealized form: the hero shooter. In the process it introduced some of the most beloved characters in all of gaming, all without relying on a single-player campaign. You simply can't escape the signs of its impact. From the raucous, gif-sharing extravaganza of the game's official subreddit, to more competitive precincts like Overbuff, Overwatch communities are humming with vitality. In spite of all this, you get the feeling that Blizzard is kind of making it all up as they go along, unafraid to experiment, and uncharacteristically transparent with the community as it figures out how to make the best game possible. Safe to say that whatever they're doing is working.