Xbox has produced some of the most influential games in the history of the medium — and the debate over their greatest is fiercely contested. Halo: Combat Evolved invented the modern console first-person shooter and made the original Xbox a must-own console. Halo 2 popularised online multiplayer gaming and defined a generation of teenage gaming experiences. The Elder Scrolls V: Skyrim became one of the most played games in history with its extraordinary open world that players are still exploring over a decade after its release. Gears of War established the cover shooter genre and showed what the Xbox 360 was capable of. Forza Horizon 5 is considered the greatest racing game ever made. What is the greatest Xbox game of all time?