Over 750,000 people played Halo 3 in the last 24 hours - so it's fair to say that Bungie has a pretty gargantuan community.
But even with one of the biggest shooter fanbases in consoles, Bungie acknowledges that it faces a big problem splitting from Microsoft and its fully-owned Halo IP. Will the Halo 3 players follow Bungie onto the next game, or will they be left behind with Microsoft?
"Not everyone that buys Halo knows what Bungie is," community lead Brian Jarrard told Edge magazine. "We want to convert Halo fans into Bungie fans and so we'll take them with us when we do the next game."