Halo wasn't the first shooter. Halo wasn't the first to introduce online multiplayer. Halo wasn't even the first Bungie game to feature an armored peacekeeper and sexy female AI battling aliens in outer space. Halo, in many ways, is unoriginal.
Yet no other series – with the possible exception of Grand Theft Auto – has had such a clear, obvious and indisputable impact on the videogame industry over the past decade. To welcome the release of Halo: Reach tomorrow, which also marks the end of Bungie's involvement with their best-selling creation, here are seven of the franchise's biggest influences...