The game became the most popular title on Xbox Live, holding that rank until the release of Gears of War for the Xbox 360 nearly two years later. Halo 2 is the best-selling first-generation Xbox game, with more than 8 million copies sold worldwide. The game received critical acclaim, with the multiplayer lauded; in comparison, the campaign and The Half-Life 2: Episode Pack offers both of the new games created by Valve to expand the award-winning and best-selling action game franchise of all time. And, as an added bonus, Half-Life 2: Deathmatch is also included for online play. MJfx.