Titan's Realm

The Titan's Realm is the tenth level of Doom (2016). The second area of Hell to be visited, the Doom marine arrives here after ripping out the Argent accumulator from the cyberdemon in the Lazarus Labs, which causes a temporary portal to open. The Titan's Realm is a demonic graveyard made of the skeletal remains of gigantic demons. Titan's Realm is also the name of the tenth mission which takes place in this level.

"In the libraries of Lazarus Labs, you learned of an artifact that can sever the connection between our two worlds known as the Crucible. If you can retrieve the Crucible, you can use it to close The Well and shut down the Argent Tower permanently from inside Hell."

- Loading description

Description
After the disaster which occurred in the manned expedition to Kadingir Sanctum, it was decided that further expeditions should focus on other areas for the time being. The second manned expedition (MTC 2148/177) was instead dedicated to exploration of the Great Steppe, an area detailed in the Corrax tablets. Those tablets had the following to say about the area: "Through the Titan's Realm and down, down to the Great Steppe where the trophies of victory are kept through the ages. Their false idols banished to a wasteland. Their towers fallen, their foundations ground to dust, their hallowed halls kept empty as cruel reminders that civilizations shall fall before the ascension of the great ones."

- Corrax tablets

Mission 10: Titan's Realm
After besting the cyberdemon, the Doom marine finds himself in the Titan's Realm - a sprawling underground temple beneath the corpses of mighty demons known as Titans. The marine fights his way through the temple and eventually finds the Titan's Core, a teleporter that will take him to the Necropolis where the Crucible is hidden.

Objectives

 * Reclaim the Crucible
 * Pass through the Titan's Core

Essentials
Head forward to the Titan skull in front of you and drop down the deep hole inside it to land in an open area with some cacodemons. Head up two flights of stairs and kill a cyber-mancubus waiting at the top then go through a large doorway to enter a temple with more cacodemons and some lost souls. Cross the bridge and head through the gate on your left to reach a junction with lost souls, an imp and a Hell razer then follow the path on your right to find a shield pickup; taking it will cause two Hell knights to teleport in, as well as revealing a skull switch and some Unwilling behind you. Escape the ambush and push the switch, then go back to the junction to find a mancubus guarding a gate which will open after it dies. Go through the gate to enter a multi-level arena that includes imps and a mancubus followed by a cyber-mancubus, revenants and knights; use the Haste powerup on the top floor to help you. Killing all the enemies will open a caged teleporter on the middle level - step into it to reach a passage just under your previous position.

Collect the ammo on your left then head into another arena that starts with imps and a mancubus followed by cyber-mancubi, revenants, knights and then two barons of Hell; use the quad damage powerup behind the first mancubus to turn the tables. Clearing the arena will open another green teleporter near the quad damage powerup; step into it and use the automap station in front of you then follow the tunnel to a wide hallway guarded by lost souls before continuing to a blood pool guarded by razers and Unwilling. There is a blue door in this area; approach it and turn left to see a jump pad that will propel you to the floor above, step across to the stone pillar on your left then jump across the blood pool to reach a chestplate pickup in front of a wooden gate. The gate will open allowing you to take the yellow skull key behind it, but taking this item will cause the ceiling to start lowering towards you; wait for the wall opposite the yellow skull to open and step inside it to evade the trap, then head through the next gate to drop into a room with toxic slime.

The yellow door ahead of you will be sealed, so head down the slope on your left to find another room full of slime as well as Unwilling. Grab the invulnerability powerup between the two central walls so you can traverse this area safely, then head to the back of the room to find an elite guard and a skull switch; push the switch and kill two mancubi that are released near the room entrance, then go back up to the yellow door area and dispose of some pinkies that teleport in to unseal the yellow door. Use the yellow key in this door and approach the skull switch behind it; some stairs will form and take you down to an arena with mancubi, revenants, imps and knights as well as a cyber-mancubus. After clearing the arena, note the crushing block that falls on to the bridge at regular intervals - jump on top of the block as it lands and it will carry you up to a skull switch that will open a wooden door below. Head through the door to find a caged teleporter and turn left to see a seemingly empty hall leading to the blue skull key. When you take the key and go back down the steps, the entrance will seal and you will have to contend with some spectres; despite being partially invisible they are identical to pinkies and have the same weaknesses. The spectres will be followed by imps, cacodemons, mancubi and then a baron; once they are all dead, leave the hall and step into the now-open teleporter to leave the area.

Follow the passage past a monolith and you will find yourself back at the blue door area where a Berserk powerup has appeared, which will help you tear through the imps, mancubi, summoner and baron that teleport into the area. Once the baron is killed, use the blue skull to unlock its door and enter the red teleporter behind it to finish the level.

Challenges

 * Trick Shot
 * Kill a lost soul with another lost soul.


 * Atop the Mountain
 * Perform a "Death from Above" glory kill on a baron of Hell (attack from above).
 * There are four barons in this level. The first two are found in the arena containing the quad damage powerup, but these are not very convenient because there are two of them and because it is a protracted battle. The third baron appears much later, in the hall with the blue skull; this is a more convenient location as there are many platforms to jump from, but since the baron is the last enemy the checkpoint will be immediately overwritten even if you fail the glory kill. The last baron appears in the blue door area at the end of the level; it is the easiest one because you only need to kill it with the Berserk powerup and it will count as a glory kill. If you make a mistake, just reload before the animation is complete.


 * Dominator
 * Kill 20 demons while using power-ups.

Classic level
Past the yellow door is a false skull switch; a staircase descends as you approach it, taking you down to an arena. Once the arena is clear go back to the entrance (now sealed with a gate) to find a lever that you can pull to open the gate and allow you to backtrack. Go back to the toxic room that had the invulnerability and turn right as you enter it to see that a wall has opened, revealing the entrance to Doom's behind it. You can use the elevator behind the nukage pool to reach a box of bullets and several stimpacks, and if you go down the stairs and open the brightly-lit wall at the bottom you will uncover a supercharge pickup (which is actually a mega health).

Special items
The second monolith is placed at a T-junction. Turn left after reaching it to find a tunnel leading to a secret mega health pickup.