It has been quite some time since our last game guide so what better way to return to some of our roots than with Doom 3, a highly resource intensive game with a highly configurable game engine. Perhaps not as well received as expected, Doom 3 has still gone on to massive sales. TechSpot"s Doom 3 tweak guide will take you through every option available in the game, the console, config files, graphics, audio and input settings.