- "I thought you'd appreciate the sentry I chose - The great Agaddon Hunters from the Telos Realm. Though long thought to be extinct - created to hunt only the Slayer and his Night Sentinels during the Unholy Crusades. Some improvements on the design have been made. Enjoy what is undoubtedly my finest work."
- ― Deag Ranak
The Doom Hunter is a new type of enemy introduced in Doom Eternal. It is a cybernetically resurrected demon from an ancient line known as the "Agaddon Hunters," creatures that were native to Earth in prehistoric times.
During the Hellish invasion of Earth, UAC cultists discovered the Agaddon Hunter remains and excavated them. The demons were revived and mechanically augmented by the cultists inside their polar facility dubbed Doom Hunter Base under the supervision of Deag Ranak, who considered them to be his finest creations. Three Doom Hunters were used as Ranak's personal guardians, being sent against the Doom Slayer when he breached the cultist base.
The Doom Hunter's cybernetic augmentations are extensive, with the only visible remnants of the original demon being its head, right arm, and half of its upper torso. The rest of its body is mechanical, including a large cannon, a twin-bladed chainsaw arm, and a set of thrusters that allow it to move through the air. It can also interface with a "sled," a hovertank-like apparatus equipped with dual heavy machine guns, rocket launchers, and a shield generator that protects the Doom Hunter's main body from harm.
Doom Hunters are Super Heavy demons with a wide variety of attacks that allow them to deal damage at all ranges. Their rocket boosters grant them limited flight, allowing them to move surprisingly quickly in multiple directions.
The Doom Hunter's attacks include:
- Slashing at the Slayer with its chainsaw arm, dealing heavy melee damage.
- Using its arm cannon to shoot fireballs at the Slayer.
- Using the two guns mounted on its sled to shoot a barrage of projectiles.
- Firing a missile barrage from the launchers on its sled. These missiles will home in on the Slayer, but their tracking can be shaken off by dashing or double-jumping. As with the guided missile attack of a Revenant, a red warning will appear in the HUD if a Doom Hunter's missiles are tracking the Slayer.
The Doom Hunter's upper body is protected by a plasma shield that blocks all damage. The shield can be destroyed temporarily by using cell weapons like the Plasma Gun, but will regenerate after some time. Alternately, its sled can be targeted directly without destroying its shield. The sled takes additional damage from Blood Punch attacks.
Once the Doom Hunter has taken enough damage, it will abandon its sled, flying with only its upper body. An audio cue of "CRITICAL DAMAGE" accompanies a Doom Hunter detaching from its sled. With its sled gone, it loses its shield and can no longer use the sled-mounted guns or fire missiles. However, it becomes more mobile and aggressive, with a tendency to "hop" sideways to dodge attacks at long range. This state can be skipped if the Doom Hunter is attacked with the Plasma Gun's Microwave Beam mod: if the creature is pinned by this for long enough, it can be destroyed without ever detaching from the sled.
- The Doom Hunter bears some resemblance to Sabaoth from Doom 3 (a humanoid on treads equipped with ranged weaponry), the Super Tank from Quake 2, and the Strogg Heavy Hover Tank from Quake IV.
- The Doom Hunter is one of the few demons to speak coherent English phrases during the game; the first one says "SLAYER IDENTIFIED" when activated by Deag Ranak, and all specimens say "CRITICAL DAMAGE" when ejecting from their sleds.
- The demon has other English phrases but were unused in the final product.
- The twin-bladed chainsaw arm the Doom Hunter has is similar to the chainsaw from DOOM 64.
- During QuakeCon 2018, The Doom Hunter was designated by Hugo Martin as the Doom Slayer's ''Arch-Enemy''. and in QuakeCon 2019 it had its reveal teaser showing him and the Doom Slayer fighting in multiple levels. some fans speculated that the Doom Hunter might be a unique demon that would hunt the Slayer anywhere and anytime randomly. this would not be the case in the final product since the Doom Hunter would first be introduced as a boss fight then occur regularly as super heavy demon.
- In-game data states the original Agaddon Hunters existed roughly 80 million years ago, which would have made them co-existent with the dinosaurs during the late cretaceous period. What they exactly evolved from is unclear, though the game states they are indigenous to Earth.
- A gigantic "crucified" four-armed Agaddon Hunter torso is found towards the end of the Cultist Base level. The significance of this specimen is not clear.