While Doom has a cheat code scheme in which every cheat starts with "id", the codes in Chex Quest are based on the names of the people in the production crew of the game, with a few exceptions.Chex Quest Cheats & Codes. IGN. 2012. PC speaker sound effects from the MS-DOS version of Doom have been modified and are used in Chex Quest. Whereas Doom is rated M for Mature, Chex Quest was made to be a child-friendly game for all audiences. Nearly all of the graphics and audio from Doom have been replaced, from textures to enemies to weapons.
