After its initial release , Halo NUMBER@1 was the most popular video game on Xbox Live , holding that rank until the release of Gears of War for the Xbox NUMBER@2 nearly two years later .

It held that title until the release of Gears of War nearly two years later . From the day of it 's release until NUMBER@3 , NUMBER@1 years later , Halo NUMBER@1 was the most played game on Xbox Live .
