During the war between the Night Sentinels[doom.fandom.com] and Hell's forces, Titans appear to have been Hell's counter to the Sentinel Atlans[doom.fandom.com], though they do not seem to have fared particularly well against them. Titans do not seem to have been deployed to Earth on the same scale as they were deployed to Argent D'Nur, seemingly only used in a rear-echelon role to transport the great temples of the Hell Priests.



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The invasion of Taras Nabad was spearheaded by a particularly powerful Titan known as The Dreadnought[doom.fandom.com], which proved impossible for the armies of the Argenta to defeat until the Seraphim empowered the Doom Slayer through use of the Divinity Machine of the Maykrs. Thus empowered, the Slayer cut down the Dreadnought with his Crucible, leaving the blade planted in the creature's heart.

A single Titan only known as "The Titan"[doom.fandom.com] faced the Doom Slayer as he rampaged through Hell. Despite being especially large and powerful even for a Titan, it proved no match for the Slayer; the precise manner in which he defeated the beast is unclear, but its skeletal remains are strewn across the area of Hell's Great Steppe.

Living Titans are present in the Hell city of Nekravol; one is chained in a pit of lava outside the demonic city's gates with streams of molten material pouring from its eyes, and two more are present at the highest level, pulling on chains to hold a section of the Maykr energy transfer device in place.

There is a unique Titan, the Icon of Sin[doom.fandom.com], it was birthed from the torture of the son of the Betrayer[doom.fandom.com]. Later, the beast was transported to Urdak and armed with Maykr technology armor, the Khan Maykr used its heart to control it, but the Slayer destroyed the heart and left the beast to its own savage instincts, ultimately embedding the Crucible blade in its exposed brain and stopping the demonic assault on Earth.



In The Ancient Gods - Part One, a dormant Titan named Maligog[doom.fandom.com] is found in the Blood Swamps of Hell, which the Doom Slayer must awaken in order to reach Ingmore's Sanctum, where The Father's life sphere is being held. Maligog is gigantic dwarfing all Demons, other Titans included. After assembling the seal and defeating the Trial of Maligog, the Slayer awakens the Titan, allowing it to carry him to the peak of the mountain where the Sanctum lies.
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In The Ancient Gods - Part Two, there are a few Titans present among the horde of demons summoned by the Dark Lord to defend Immora from the Doom Slayer. When the Night Sentinels come to the Slayer's aid, Titans are seen in the background, battling Atlans. Another is being harassed by a Sentinel Wintherin[doom.fandom.com].