The Doom Eternal Cyberdemon is a modern recreation of the original Doom's Cyberdemon. It is tan in color, with long curving black horns and two small, beady black eyes set very far apart from each other. The cyberdemon lacks any sort of nose, and has a large mouth full of razor-sharp teeth, lacking the split jaw found on the Doom (2016) version of the monster. Its left leg is cybernetic and green in color. Its right arm has been replaced with a rocket launcher which is very similar in design to the Doom 2016 Cyberdemon's rocket launcher. The abdomen of the Cyberdemon is exposed, revealing a mixture of wires and gore inside of the body. Like its 2016 counterpart, it appears to have an Argent Accumulator on the left side of its chest.
- Doom Eternal's Cyberdemon's Main Model has Harbinger of Doom.