Whether you need to check them off, or just hop on Xbox Game Pass, knowing where to look for Doom Eternal Cheat Codes will save you a lot of time. Once you find these hidden discs, they activate features such as unlimited ammo, instant kills, and even explode enemies like confetti. However, some of them are very well hidden, using secret entrances and tricky acrobatics. There are 14 Doom Eternal Cheat Codes included in the game. We can tell you how to get disc 15, which you cannot physically pick up. It’s possible to replay the game and collect collectibles in any order, but we’ve arranged this list roughly according to how you’ll advance.
Infinite Lives
Location: Hell on Earth
Effect: The player has infinite lives
Once you’ve jumped across a ravine filled with lava and climbed on the hanging train, you’ll pass through a train tunnel. You’ll also enter some hallways with floor tentacles after crossing the ravine. Upon opening the door to the secret, you will have to go through it, clear the room, and then turn right to find a red corner with a box. This will allow you to climb into another vent that will lead to the code.
All Runes Unlocked
Location: Fortress of Doom
Effect: All Runes are unlocked
Open up new areas in the Fortress of Doom and have two Sentinel Batteries to get a cheat code disc. The original Praetor Suit is located underneath the tower on the right, accessible by a bridge. You must use two batteries to unlock it. Once you’re done, you’ll see a hole in the chamber on the left – you have to jump or dash to the ledge or you’ll fall over. The disc is inside.
IDDQD – Sentinel Armor
Location: Cultist Base
Effect: Sentinel Armor is active for the whole mission
As soon as you get the Super Shotgun, you will find a cheat for Sentinel armor in the middle of an area where you have to kill a series of monsters after punching columns. After all the columns/monsters are cleared, you can grab the cheat by swinging off the yellow bar and returning to the platform where it is located.
Silver Bullet Mode
Location: Doom Hunter Base
Effect: Staggered demons die when they are hit by projectiles, explosions, Flame Belch, or Dashing.
As you progress through the Doom Hunter Base level, you’ll reach a climbable cylinder. On top, you’ll find a cheat disc that activates a one-hit kill on staggered enemies.
Infinite Ammo
Location: Super Gore Nest
Effect: All weapons have infinite ammo
Located near the pipe that leads to the Slayer Gate, this cheat is extremely helpful. You can find it when you place the three colored gore keys. To get to it, however, you’ll have to jump from the lower level on the other side of the platform and reach a semi-hidden entrance on the other side.
IDKFA Weapon Mastery
Location: Arc Complex
Effect: All weapons are unlocked and mastered, and all equipment is unlocked
You can unlock all weapon masteries by jumping across this yellow bar. Once a Revenant is dispatched, check around for a cheat disc.
Fully Upgraded Suit
Location: Fortress of Doom
Effect: All Praetor suit perks are unlocked
It’s not something that you’ll find immediately in the Fortress of Doom, so keep an eye out for it. It appeared to me somewhere around the Mars Core/Arc Complex levels, but I’m not sure if it is related to progression or using Sentinel Batteries. A red dot appears in a window to the right of the power core. You’ll need to shoot it to activate the jump pad, which will allow you to get it. It appears in an air vent above the power core.
Power Up Mode: Onslaught
Location: Mars Core
Effect: Infinite Onslaught power-up is active for the whole mission
You will find this one once you land on Mars, in a room full of tentacles. Turn right once you enter the room through the hole in the wall, and you will see it by the hole in the floor.
Power Mode: Overdrive
Location: Taras Nabad
Effect: Infinite Overdrive is active for the whole mission
During the quest to find the Crucible (big red sword), you’ll discover the Overdrive cheat. Just before you climb up to the dead Titan, you need to go to the right of the gate behind which it’s locked. You need to punch a wall to get to the cheat. The cheat can be found after completing the water puzzle and the Slayer Gate.
Power Mode: Berserk
Location: Urdak
Effect: Infinite Berserk powerup on start. Only works on ‘Hell on Earth,’ ‘Exultia,’ ‘Super Gore Nest,’ ‘Arc Complex,’ and ‘Mars Core.’
After aligning the three teleporter rings, look to your left for a crack you can punch. This crack will help you reach the Berserk cheat, which lets you rip enemies apart with your bare hands.
Famine Mode: No Demon Drops
Location: Neravol
Effect: Demons do not drop the health of armor on death
You have to fight a Gladiator to get this cheat, and it prevents demons from dropping items on death, which isn’t great. After you see off the Gladiator in the area with the large fire grate, drop down the hole on the right. You can quickly turn around to grab a ledge as you fall.
Party Mode Confetti
Location: Nekravol part 2
Effect: Demons burst into confetti on full body gib, lower body gib, upper body gib, limb loss, and fatal headshots.
Be prepared to reload the checkpoint several times as it requires falling past an opening that needs to be broken open. You will encounter a big drop at the bottom level of the Soul Spire as soon as you enter the building. Look to the left for a ledge you can jump to, then look back to where you just came from, and you’ll see a breakable wall below. You should dash to the ledge after smashing an opening.
One Shot Stagger
Location: Nekravol part 2
Effect: One hit from projectiles, explosions, Flame Belch, or Dashing instantly staggers demons. It has no effect on unique bosses.
The cheat can be found on Nekravol when you smash the chains connecting two titans. Once you get there, drop down the lift shaft and look back for a tunnel you can enter.
QuakeCon Mode
Location: N/A
Effect: Listen to the fans cheer and gasp as you tip and tear.
The 15th Doom Eternal Cheat Code disk is not found anywhere in the world, so don’t worry about finding it. If you upgrade your Praetor Suit completely, you will earn a reward. You’ll need to locate all the upgrade tokens scattered throughout the game (look for statues holding coins). Once you activate all of them, you will unlock QuakeCon mode, which will add a screaming crowd to cheer you on as you rip and tear your way through the game.