Doom Eternal Cheat Codes, Mastery Tokens, and Nightmare Tips for PC
Doom Eternal Cheat Codes, Mastery Tokens, and Nightmare Tips for PC can make campaign replays easier, faster, or far more demanding. Collect hidden cheat-code disks, spend mastery tokens carefully, and use constant movement and target priority to survive Nightmare difficulty.
This guide explains how to activate cheats, where to find the first five listed disks, which modifiers do what, and how to improve your weapons without wasting resources.
How to Use Doom Eternal Cheat Codes, Mastery Tokens, and Nightmare Tips for PC
Cheat codes are physical floppy disks hidden throughout campaign missions. Once you collect a disk, it is added permanently to your cheat-code collection. You can then activate it when replaying a completed mission.
- Return to the main menu and choose Mission Select.
- Select a mission you have already completed.
- Before launching, open the Cheats menu.
- Toggle on any collected codes you want to use.
Cheats are designed for campaign missions. They do not work in Battlemode or Master Levels, so do not expect them to carry over into those modes.
This separation follows the structure built into the game by id Software: campaign replays support modifiers, while competitive and challenge-focused content keeps its own rules.
Return to the main menu, choose Mission Select, and pick a campaign mission you have already completed. Open the Cheats menu before launching and toggle on the codes you want to use.
Collect hidden disks by checking elevated ledges, breakable walls, vents, and alternate routes before leaving an area. The first five listed locations are in Hell on Earth, Exultia, Cultist Base, Doom Hunter Base, and Super Gore Nest.
Do not spend a token automatically. Test a weapon modification first, then use a token on a difficult mastery challenge or an upgrade that supports your preferred loadout. Ballista Arbalest is a strong Nightmare priority, while close-range players may prefer Combat Shotgun Full Auto.
On Nightmare, keep moving and preserve an escape route. Kill the most dangerous ranged or heavy demon first, use glory kills for health, chainsaw fodder for ammunition, and weapon combos to control each arena.
Doom Eternal Cheat Codes: Locations by Mission
The following locations cover the first five mission entries in this guide.
Explore side paths before dropping into a combat arena, because several disks sit above, behind, or beside the route that appears to be the main path.
Mission 1: Hell on Earth
The Infinite Lives disk is on a ledge above the starting area. After the first combat encounter, look for the right-hand platform. Jump across to it before dropping into the next arena.
This is an easy disk to miss if you rush forward. Use the platforming section as a quick tutorial for checking elevated ledges whenever the level opens into a larger room.
Mission 2: Exultia
The Unkillable disk is hidden in the castle section. Near the first shield soldier encounter, search for a breakable wall. A hidden room behind it contains the disk.
When exploring Exultia, inspect walls near combat encounters rather than assuming every room is part of the critical path. Breakable surfaces often reward players who pause after a fight.
Mission 3: Cultist Base
In the outdoor area with the ice caves, climb the wall on the left side. The Instant Stagger disk is on a hidden ledge above the main route.
Look for climbable surfaces before crossing the area. If the path seems to end at a jump, check both sides of the arena for a higher route.
Mission 4: Doom Hunter Base
The All Runes disk is in the recycling center area. Find the locked room, then shoot the vent above the door. Enter through the opening to collect the disk.
This route is a good example of how Doom Eternal hides collectibles behind environmental interaction rather than a simple key. Check vents, breakable walls, and alternate vertical paths whenever a room appears sealed.
Mission 5: Super Gore Nest
During the blood swamp section, leave the main path briefly and look to the left. The Infinite Ammo disk is on a floating platform.
Use nearby platforms to line up the jump instead of trying to reach the disk from the lowest ground level.
A careful approach is safer than attempting the jump while enemies are still active.
What Each Doom Eternal Cheat Code Does
- Infinite Lives: You avoid the normal death-screen interruption, allowing the level to continue after your health reaches zero.
- Unkillable: You take no damage from any source.
- Instant Stagger: Every hit immediately staggers the target, creating frequent opportunities for glory kills.
- All Runes: Every rune is active at the same time, regardless of your equipped slot count.
- Infinite Ammo: Weapons fire without consuming ammunition.
- Fully Upgraded Suit: All Praetor Suit perks are active from the start of the mission.
- Infinite Equipment: Equipment such as grenades and ice bombs does not run out.
- Silver Bullet Mode: A single Ice Bomb hit staggers demons.
- Powerup Mode: Onslaught: Each arena begins with an Onslaught powerup active.
- Famine Mode: Enemies drop no health or armor, turning the mission into a strict resource-management challenge.
For practice, combine a forgiving modifier such as Infinite Ammo with a weapon-combo goal.
For example, you can replay an earlier mission to practice Ballista shots, rocket control, and glory-kill timing without constantly stopping to search for ammunition.
Mastery Tokens and Weapon Upgrade Priority
Mastery tokens are valuable because they can bypass the normal mastery challenge for a weapon modification.
They are best saved for upgrades whose challenge is difficult to complete naturally or whose effect will improve your preferred combat loop.
Do not spend one simply because it is available; first check whether you can complete the mastery challenge during ordinary campaign play.
For a fast and flexible campaign route, prioritize weapon modifications in this order:
- Ballista with Arbalest: This can one-shot Cacodemons and Arachnotrons, making it useful when those enemies appear in open combat spaces.
- Rocket Launcher with Remote Detonation: Remote explosions let you control the timing and location of a blast, including mid-air shots and corner kills.
- Combat Shotgun with Full Auto: It provides very high close-range damage for standard encounters, although it can consume ammunition quickly.
- Plasma Rifle with Microwave Beam: The beam locks down enemies such as Whiplashes and Arch-Viles for about 4 seconds, creating a window to reposition or finish them.
These priorities are not a rule for every play style. If you rely on close-range aggression, the Combat Shotgun may deserve earlier attention. If you struggle with dangerous support demons, the Microwave Beam can be more useful than a faster damage upgrade.
Quick takeaways for stronger campaign replays:
- Activate collected cheats through Mission Select before launching a replay.
- Search ledges, vents, breakable walls, and side routes for hidden disks.
- Save mastery tokens for challenging mods or upgrades that fit your loadout.
- Prioritize ranged and heavy demons before clearing fodder.
- Use glory kills for health and chainsaw fodder for ammunition.
- Keep moving on Nightmare and preserve an escape route.
Nightmare Tips for PC Players
Nightmare is less forgiving because incoming damage is dramatically higher.
The practical benchmark in this guide is that demons deal roughly twice the damage they deal on lower settings, and standard enemies can one-shot an unprepared player by Mission 4.
Movement is the foundation of survival. Never stand still when an arena is active.
The original rule of thumb is that constant movement can reduce your chance of taking a hit by about 60 percent, but movement works best when paired with purposeful routes between targets, ammunition, armor, and health.
- Remove priority threats first: Mancubi and Arachnotrons should usually be near the top of your target list because they apply sustained pressure. Do not let them remain active while you focus only on fodder demons.
- Use the Ice Bomb against Marauders: During Marauder fights, the Ice Bomb temporarily stops his shield and gives you a safer opening. Keep moving rather than waiting directly in front of him.
- Chainsaw one fodder demon: Use the chainsaw on one suitable fodder enemy in each major encounter to refill ammunition. Save fuel for moments when your weapons are running dry.
- Reserve the Crucible: The Crucible has 3 charges, so use it on Tyrants rather than ordinary enemies. Its limited charges are too valuable to spend on threats you can handle with normal weapon swaps.
A strong Nightmare loop is simple: move through the arena, kill the most dangerous ranged or heavy demon, use a glory kill when you need health, chainsaw fodder when you need ammunition, and keep an escape route open.
This approach supports the fast, aggressive combat rhythm emphasized by id Software’s campaign design.
Doom Eternal Replay Intelligence
Doom Eternal Cheat Codes FAQ
Can cheat codes be used in Battlemode?
No. The cheat system applies to campaign missions and does not work in Battlemode or Master Levels.
Do collected cheat disks disappear after use?
No. Collecting a disk permanently adds it to your collection. You can toggle the code on again during another completed-mission replay.
Should I spend mastery tokens immediately?
Usually not. Save mastery tokens for a weapon modification challenge that is difficult to complete or for an upgrade that directly supports your preferred loadout.
Test the weapon first, then decide whether the shortcut is worthwhile.
What is the best first upgrade for Nightmare?
The Ballista with the Arbalest modification is a strong early priority because it can quickly remove Cacodemons and Arachnotrons. However, players who depend on close-range damage may prefer Full Auto for the Combat Shotgun.
For a broader progression route, use this Doom Eternal weapon upgrades and campaign progression guide alongside the cheat locations.
Cheats are excellent for practice and replay experiments, while careful mastery-token spending and disciplined movement remain the keys to completing Nightmare without relying on modifiers.
