Logo

The Doom logo is a famous logo used throughout the Doom franchise. The logo can be found here.

Original Doom games, Doom 64, Doom RPG, the Doom novels, and the Doom comic
In the original Doom games, the logo spells out the word, Doom in capitals. The upper part of the logo is blue, with mechanic parts, and the lower part is yellow. It was illustrated by Don Ivan Punchatz. The logo was used in Doom 1, Doom 2, The Lost Episodes of Doom, The Ultimate Doom, Master Levels for Doom II, Final Doom, Doom RPG, the Doom novels, and the Doom comic. In Doom 64, the logo was given a more 3-dimensional effect.

Doom 3, Doom 3:Resurrection of Evil, Doom: The Boardgame, and Doom 3: Worlds on Fire
In Doom 3, Doom 3: Resurrection of Evil, Doom, The Boardgame, and Doom 3: Worlds on Fire, the logo was modified, but is still similar to the original Doom logo.

The Doom movie
In the Doom movie, the logo was colored black from top to bottom.