Quake II Magazine Archive: id Software – Quake II

"Our Chaos Theory: fire a BFG in 1997 and you get CHAOS in 2021… The reason Quake and Quake II get more coverage than other games is simply because of the way in which gamers embrace playing them. No other games have been mutated in so many ways as Quake and Quake II have. So if you're sick of hearing the word Quake — bad luck. You'll be hearing a lot more of it in the future."