Doom Eternal: Beginner's Guide & Best Tips

First off, let me be real with you

I've been playing shooters since I was twelve years old, sneaking Quake III sessions on my dad's office computer. I've got somewhere north of 400 hours in Doom Eternal, across three playthroughs on Ultra-Violence and one masochistic run on Nightmare that I'm still not sure I've fully recovered from. I've also played through the entire Dark Souls trilogy, Sekiro, and Hollow Knight, and I'm telling you right now: Doom Eternal is harder than all of them. Not in a "rolling through attacks" way, but in a "your brain is going to short-circuit from trying to do twelve things at once" way.

I remember my first playthrough. I was streaming it to a buddy who'd already beaten it, and about two hours in, I just stopped moving. My character was standing in a corner of the Doom Hunter Base while I stared at the wall, trying to figure out what the hell I was supposed to be doing. My friend just said, "Yeah, that happens. You gotta unlearn everything every other shooter taught you."

That's what this is. A deprogramming. If you're reading this because you're stuck, frustrated, or wondering why everyone says this game is a masterpiece while you're getting your ass handed to you by a single Mancubus, you're in the right place. I'm going to tell you exactly what I wish someone had told me before I spent my first three hours trying to play this like Doom 2016. Spoiler: that gets you killed.

Why this game makes you want to throw your controller

Let's call it what it is. Doom Eternal is a resource management game disguised as a shooter. The second you treat it like Call of Duty or even Doom 2016, you're dead. I don't mean "oh no, I lost some health." I mean you're going to see that glory kill failure animation so many times you'll start hearing the Slayer's grunts in your sleep.

The big pain points I see from every single person who picks this up for the first time:

• You feel like you're doing no damage. You shoot an Imp five times with the basic shotgun and it's still coming at you. This isn't a bug. The game is screaming at you to use your whole arsenal. The basic shotgun is not your main weapon. It's a utility tool.
• You keep running out of ammo. This is the #1 rage-quit reason. You empty a clip into a Cacodemon, you're out of shells, and there's another one behind you. The game feels like it's punishing you for shooting. You're right — it is. The game wants you to swap weapons constantly and use your tools (flame belch, chainsaw) to refill. If you're not swapping, you're starving.
• The Marauder exists. I'll say it plainly: this enemy is bullshit at first. He breaks every rule the game taught you. You can't just shoot him. He has a "shotgun range" where he's invincible. You have to stand at medium distance, wait for his eyes to flash green, and then shoot. It feels clunky until it clicks, and it clicks differently for everyone. I spent two hours on my first Marauder fight in Arc Complex. Two hours.
• Platforming in a Doom game. Look, I love the movement in this game, but the first time I had to do the monkey bar section in Exultia, I fell into the lava four times in a row. The physics are floaty compared to a pure platformer, and you don't have the muscle memory yet.
• You don't know what "weak point" means. The game tells you to shoot the Arachnotron's turret or the Mancubus's cannons, but it doesn't tell you how punishing it is to ignore them. I saw a streamer try to kill a Mancubus by just shooting its belly for five minutes. That's not playing Doom Eternal. That's torture.

The game is teaching you a language, and you don't know the words yet. That's fine. Everyone goes through this. The people who quit are the ones who refuse to learn. You're still here, so you're already ahead of half the playerbase.

What you actually need to know before you die for the 50th time

Forget everything. Forget cover. Forget "peak and shoot." Forget reloading, because there's no reload in this game (bless the developers). Here's what you need to do from the second you wake up in the Fortress of Doom:

Step 1: Remap your controls. I don't care what system you're on. If you're on console, put jump on L1/LB and dash on R3. If you're on PC, bind your weapon wheel to a thumb button or scroll wheel. You need to be able to jump, aim, and shoot all at the same time. Default controls will have you claw-gripping your controller like a madman. I broke a Scuf doing that. Don't be me.

Step 2: Understand the loop. This is the core of the game, and if you forget everything else, remember this:

• Flame Belch (RB/L2): This covers enemies in flames. While they're burning, doing damage to them drops armor shards. Use this BEFORE you go into a fight. Not after you're low. I fire the flame belch the second I see a group of three Imps. It turns them into armor pinatas.
• Chainsaw (B/Circle): This is not a weapon. It's a "Get Out of Ammo Free" card. Using one bar of fuel (which recharges over time) instantly kills most small enemies and drops a ton of ammo. Chainsaw an Imp every 45 seconds. Set a timer in your head. Do it. The game gives you free fuel drops from dead enemies for a reason.
• Glory Kill: Stagger an enemy (flashy yellow glow) and hit the melee button. This drops health. Do not let health bars sit in the yellow. If an enemy is staggered, you go get that kill. Health is the most scarce resource in the game, and glory kills are your only consistent way to get it back.

Step 3: Buy the right upgrades first. The game throws a skill tree at you and some of the options are traps. Here's your priority order:

• Fast Hands (Praetor Suit): This makes weapon swapping faster. It's the single most important upgrade in the game. Get it first.
• Extra Lives (Praetor Suit): You can have up to three. These are automatic revives. On Ultra-Violence, you will die. A lot. Extra lives save your run.
• Air Control (Praetor Suit): This lets you move in the air. You need this for platforming and for dodging. It's not optional.
• Full Auto Shotgun (Weapon Mastery): This is the only weapon mod that matters for the first half of the game. It burns through ammo fast but shreds mid-tier enemies like Cacodemons. Pair it with the flame belch and you can heal through almost anything.
• Double Dash (Praetor Suit): You thought one dash was enough? The game laughs at you. Get two dashes as soon as you can afford it.

Step 4: Learn the target priority. Not all enemies are created equal. If you see a Whiplash (the snake lady with the energy whip), kill it immediately. It will chase you across the map and stun-lock you. If you see a Mancubus, shoot its arm cannons (the blue/green glowing parts) to disable its ranged attacks. If you see an Arachnotron, shoot its turret on top. This takes away its best attack and makes it basically a slow meatbag. If you see a Cacodemon, wait for it to do its bite attack, then shoot a grenade (or the projectile from the Ballista) into its mouth. It'll stagger instantly for an easy glory kill. This is called "the Cacodemon popcorn trick" and it's free health.

Step 5: Move. Constantly. Forever. Stopping is death. If you stop moving for more than two seconds in a fight, you are dead. I don't care if you're behind a wall. The enemies will flank you, the Revenant will missile you from behind, and the Archvile will spawn more enemies on top of you. Jump, dash, climb, swing. The game is a dance floor and the demons are bad partners. Be the lead.

The stuff that separates the dead from the demons

Once you've got the basics down, you'll be surviving fights. But surviving isn't the goal. The goal is to make the game look as cool as the trailers. Here's how you stop being a survivor and start being the Slayer.

The "Quick Swap" is mandatory, not optional. The game has a hidden mechanic: if you shoot a weapon, immediately switch to another weapon and shoot again, the second shot comes out faster than if you waited for the first weapon's animation to finish. This is called "weapon swapping" or "quick swapping," and it's how the speedrunners and pro players do insane damage. The combo to learn first is Super Shotgun -> Ballista. Shoot the Super Shotgun, immediately press 4 (Ballista), shoot, then press 3 again. You can kill a Baron of Hell in about four of these swaps. Practice this against the zombie enemies in the Fortress of Doom for ten minutes. It's boring, but it'll save your life against the Tyrants later.

The Chaingun Shield is a crutch, but use it. The Chaingun's mobile turret mod is good, but the Energy Shield mod is better for survival. You can deploy a shield that blocks all frontal damage while you spin up. This is your panic button. If you're getting cornered by a Doom Hunter or a Marauder, pop the shield and back away. It drains your movement speed, but it's better than dying. Just don't get dependent on it — the shield encourages standing still, which is the opposite of what the game wants.

Learn the Marauder's script. The Marauder has a set pattern. He walks toward you. He stops. He waits. If you shoot him from far range, he blocks. If you shoot him from close range (his "instant" range), he hits you with the axe. The sweet spot is medium range — about three dash distances away. At that range, he'll do one of two things: a lunge attack (dodge it) or a green-eye flash. When his eyes flash green, you have 0.8 seconds to hit him with the Super Shotgun or Ballista. If you wait longer, he summons a shield wolf that can stun you. It's a rhythm game. Three steps back, wait for green, shoot, repeat. Once I started treating it like a dance — like beating the Nameless King in Dark Souls — it clicked. Also: never use the Rocket Launcher on him unless it's the lock-on burst and you're behind his shield. Everything else gets blocked.

The Blood Punch is a room clearer. You can charge the Blood Punch by earning a glory kill. Holding the melee button lets you unleash a massive AoE punch that stuns everything in a cone in front of you. This is how you deal with Prowler phases or when you get swarmed by gargoyles. Save your blood punch for when you're cornered. It buys you a full second to breathe.

The Microwave Beam is not a joke. Everyone writes off the Plasma Rifle's heat blast mod, but the Microwave Beam (hold alt fire) stuns any enemy it hits. If you hit an Archvile with it, it stops the Archvile from summoning demons. If you hit a Marauder with it (yes, it works), it stops his block. It drains your ammo fast, but it's the ultimate "stop hitting yourself" tool. I used this on the final boss of the base game to lock him down while I unloaded rockets. It's not flashy, but it's practical.

Use the frag grenade on the Cacodemon's mouth. Yes, I already said this, but let me be specific. The Cacodemon has a "bite" animation where it opens its mouth wide. If you throw a frag grenade into that mouth during the bite, it counts as a weak point hit and staggers the Cacodemon instantly. You can also do this with the Ballista's projectile. If you're feeling lucky, you can shoot the Plasma Rifle's Microwave Beam into its mouth too, but that's harder. Practice this on the Cacodemon in the first level. It's a free kill every time.

The Fortress of Doom has a secret weapon mod. Go to the Fortress of Doom between missions. Look for the Secret Encounters — they're marked by a purple rune on the door. Completing all of them in a level unlocks a cheat code, but more importantly, there's a hidden room in the Fortress of Doom's main hall (look for a breakable wall behind the couch) that gives you the Unmaykr, a super shotgun that fires a wide spread of energy. It uses energy cells (the same ammo as the BFG), but it's great for clearing rooms of mid-tier enemies. Don't waste your time getting it on your first playthrough, but on the second, it's a fun toy.

The dumb shit I did so you don't have to

I have made every possible mistake in this game. I have died to the tutorial zombie. I have fallen off the same platform six times. I have wasted all my BFG ammo on a single Hell Knight. Let me save you the pain.

• Don't hoard your BFG or Crucible. I see so many streamers save their BFG for "the right moment" and then die with it still stocked. The game is designed around you using these resources. The BFG recharges at secret encounter terminals. The Crucible has three charges for a reason. If you're in a fight with an Archvile, use the Crucible on it. If you're swamped by a Tyrant, BFG it. These tools are there to solve your immediate problems, not to be saved for a screenshot.
• Don't ignore the purple goo. There's a feedback loop in this game: you run to avoid the purple slowing goo, you hit a Mancubus fireball, you stutter, you get stuck in the goo, and then you die. The goo is not a suggestion. Use the Meathook (Super Shotgun's alt fire) to pull yourself out of it. It's faster than walking. If you don't have the Super Shotgun yet, use the Acid Spit (from the "Cultist" base in Taras Nabad) to clear a path. Otherwise, just jump over patches. Standing in it is suicide.
• Don't ignore the sound cues. The game has a directional audio system. If you hear a roaring sound — that's a Tyrant spawning behind you. If you hear chains — that's a Whiplash approaching from your left. The Whiplash makes a distinct "rattle" sound before it attacks. If you hear it, dash perpendicular to the sound. This game is as much about listening as it is about shooting.
• Don't upgrade the Heavy Cannon's scope. The Precision Bolt mod on the Heavy Cannon is decent for long-range sniping (useful against Cacodemons and Arachnotrons), but the scope mod adds a zoom level that makes the screen wobble. It's not worth the points. Get the Micro Missiles mod instead — it turns the Heavy Cannon into a burst weapon that's good against mid-tier enemies.
• Don't challenge the Marauder with the Super Shotgun up close. I already covered this, but I did it again last week. I thought "this time will be different." It wasn't. He hit me with the axe. I died. The Marauder player the same game every time. Don't gamble against him.
• Don't skip the Secret Encounters. I know, I know, you're in a hurry. But each Secret Encounter gives you a Sentinel Shield shard or a Praetor Suit point. The Sentinel Shield (the blue bubble) blocks all damage for two seconds. It's you can use it to tank a Baron of Hell's charge. It's worth the detour.
• Don't try to kill everything. In some fights, like the arena before the Khan Maykr, you can just run past half the enemies. The game wants you to fight, but it doesn't lock the door behind you. If you're in a room with a dozen Imps and a Mancubus, you can flame belch the Imps, glory kill them for health, and then leave. You don't have to genocide everything. Escaping is a valid strategy.

Questions you're too embarrassed to ask

"Why does the game keep pausing during the tutorial?" That's the glory kill confirmation prompt. It shows up when you first encounter a new enemy type. You can turn it off in the settings under "Game" -> "Show Glory Kill Confirmation." Turn it off. It's a training wheel that breaks your flow.

"What difficulty should I play on?" If this is your first Doom game? Hurt Me Plenty. Not I'm Too Young To Die (too easy, teaches bad habits) and not Ultra-Violence (will make you quit). Hurt Me Plenty gives you enough breathing room to learn the tools without being a pushover. If you've beaten other shooters on hard, try Ultra-Violence, but expect to die. I did Ultra-Violence on my second playthrough after 40 hours of practice. It was brutal.

"How do I beat the Archvile?" The Archvile is the most dangerous enemy in the game. It summons other demons, has a laser attack that tracks you, and teleports. The strategy: use the Microwave Beam to stun it (it stops the summon), then hit it with the Ballista. Or, if you have the Crucible, just Crucible it. One shot from the Crucible kills an Archvile. It's not a waste. It's a necessary evil. Also, the Archvile can be staggered by the Super Shotgun's meathook if you hit it mid-teleport. This is hard to pull off, but if you do, you get a free glory kill.

"What's with the purple skulls?" Those are Sentinel Keys. There are three in the Fortress of Doom. Collecting them opens a door in the Fortress that gives you the Unmakyr (the super shotgun I mentioned earlier). It's optional, but it's a fun reward for exploring.

"How do I deal with the Marauder in Taras Nabad?" That's the one in the hall with the two Cacodemons. The trick: kill the Cacodemons first (popcorn trick, remember?). Then focus on the Marauder. Don't panic. Use the Super Shotgun -> Ballista combo at medium range. If you get overwhelmed, use the Chaingun shield to block his axe throw. Take your time. That fight is a marathon, not a sprint.

"Is the multiplayer worth it?" No. The battlemode is dead on arrival. It's 2v1 (two demons vs the Slayer) and it's unbalanced. If you want multiplayer, go play Quake Champions or something. Doom Eternal's single-player is the entire game.

"When should I use the Sentinel Shield?" The Sentinel Shield (blue bubble) is great for blocking boss attacks. Use it against the Doom Hunter's missile volley, the Khan Maykr's energy beam, and the Icon of Sin's stomp. It's also good for tanking the Marauder's axe throw if you're caught out of position. It has a cooldown, so don't spam it.

"I'm stuck on the Icon of Sin. Help." The final boss is a DPS check. The strategy: shoot the glowy bits on his arms and chest to disable his attacks. Then, when he opens his mouth (the green glow), shoot a frag grenade or a Ballista shot into it. This stuns him for a few seconds. During the stun, go ham with the Crucible or BFG. The fight has three phases, and each phase adds more adds (Imps, Cacodemons, Tyrants). Use the flame belch + grenade combo to keep your armor up. If you have the Microwave Beam, you can stun the Tyrants that spawn. It's a long fight. Don't give up. I died to him 12 times on my first attempt. On the 13th try, I killed him with 3 health left. It was the most satisfying gaming moment of my life. You can do it.

If you've made it this far, you're already doing better than 90% of new players. The game is hard. It's supposed to be hard. But it's also fair. Every death teaches you something — a weapon you ignored, a tool you forgot, a positioning mistake you made. Learn from it. Adapt. Rip and tear. And if you get stuck on a specific fight, come back here. I'll add a guide for the boss fights eventually. For now, go kill something.

This game is about the same kind of resource management and build optimization you'd see in a good roguelike. If you want to see how similar mechanics work in a completely different genre, check out our Hades guide — it talks about using your resources to control the flow of combat. Different game, same philosophy. Or if you're into the idea of learning enemy patterns and punishing openings, our Sekiro guide might help you think about boss fights differently. It's all connected.