Microsoft has been very transparent with the data coming out of Xbox Live, and one of the weekly reports it gives gamers is the most popular games list on their system.  And which game regularly takes the top spot?

The two-year old Halo 3!

IGN reports:

At a recent Bungie press event, Bungie’s Brian Jarrard offered a little clarity. Nearly two years after its release, there are still roughly 1 million unique Halo 3 players every day. That’s greater than the population of San Francisco.

Microsoft has released a couple of DLC packs for Halo 3 with new maps, as well as a real-time strategy game Halo Wars, and has set the groundwork for games, movies and more, which we detailed in last week’s Halo Future exclusive feature.