Xbox 360

The Xbox 360 defined online console gaming by launching Xbox Live with unified achievements in 2005, a year head start over the PS3 helping it reach 84 million units sold. Despite the Red Ring of Death failure rate of 23.7%, its library of Halo 3, Gears of War, and Mass Effect surpassed #7 PlayStation 4 in shooter and RPG exclusives during its prime. It remains the gold standard for live-service platform foundations.