You\'re just a twat. (No, j/k)
Doom is "THE" definitive shooter for the PC.. the one that made FPS\'s famous and IMO is still the best. It\'s circa 1992, so the Legacy patch adds in things like High rez (600x800 & up), vertical aiming, jumping, a console, online play, skins, transperancys... all kinds of neat graphical upgrades without ruining the original core of what made the game great.
Hey.. you never specified what platform.
