If you’ve already blazed through the first few hours of id Software’s gritty medieval FPS and want to dig into all the hidden details you might have missed, this deep dive into Doom The Dark Ages spoilers is for you. I’ve put 70+ hours into the game across three separate playthroughs, so I’ve uncovered every secret ending, cut lore beat, and optional boss fight most casual players never find. We won’t hold back on details, so if you’re still playing through blind and want to avoid ruining the surprise, click away now.
Core Doom The Dark Ages Spoilers: The Full Main Story Recap
The biggest twist right out the gate? The “Dark Ages” setting isn’t an alternate universe, it’s 6th century Earth, thousands of years before the events of the original Doom 2016 and Doom Eternal. The Doom Slayer didn’t get sent to a new realm, he fell through a time rift after the final battle of Eternal, right as he was being sealed away in the Tomb of Serpents. That means all the demonic invasions you’re fighting off in medieval Europe are actually the first recorded contact between humanity and Hell, an event the church later covered up in official historical records.
If you’ve only seen snippets of Doom The Dark Ages spoilers online, you probably didn’t catch that the time rift the Slayer falls through is the same one the UAC accidentally reopens in 2148 to kick off the events of Doom 2016. You aren’t just fighting to save a small village – you’re stopping Hell from taking over Earth millennia before the UAC ever existed. Most players miss the small carvings on church walls in the third act that directly reference the events of Eternal, including depictions of the Crucible and the Slayer’s mark. Those aren’t just easter eggs, they’re confirmation that the entire Dark Ages arc is canonical to the main Doom timeline, not a one-off spin-off.
Alternate Endings: How to Unlock Both Secret Finales
Most players will get the standard ending first, where the Slayer seals the rift and is sent back to his original timeline to wake up ahead of Doom 2016. But there are two secret endings you can unlock if you hit specific requirements during your playthrough, and both drastically change how you see the entire story. You don’t have to start a brand new save to unlock them either – you can load up a late-game save and complete the missing requirements to trigger the other endings without replaying the whole campaign.
- Unlock the first alternate ending by collecting all 12 Hell Rune artifacts scattered across the game’s 9 main levels. This ending reveals the village priest who helps you through the first act is actually a sentient fragment of the Khan Maykr, sent to monitor the Slayer during his time in the past.
- Unlock the second secret ending by beating the game on Ultra Nightmare difficulty without using any fast travel points. This ending shows the Slayer leaving his iconic Praetor Suit gauntlet buried under a stone church, which is the same gauntlet the UAC digs up in the opening scene of Doom 2016.
- There’s also a hidden post-credits scene that plays no matter which ending you get, teasing that the Dark Ages version of Hell will return in the next mainline Doom entry.
The Ultra Nightmare ending is considered the canonical ending by id Software’s writing team, per comments from their official Discord Q&A last year. I’d only recommend attempting that run if you’ve already mastered the game’s parry mechanic, as you won’t have access to mid-mission checkpoints to save your progress. If you die even once, you’ll have to restart the entire game from the beginning, so it’s not for casual players.
Hidden Boss Fights Most Players Never Find
The main campaign only has 7 required boss fights, but there are 4 optional secret bosses scattered across the map that reward you with unique permanent upgrades you can’t get anywhere else. None of these fights are marked on your map, so you have to go out of your way to find hidden breakable walls or complete small side quests to trigger them. You can go back to earlier levels at any point through the fast travel system, so you don’t have to worry about missing them if you’re already halfway through the campaign.
The hardest of these secret bosses is the Fallen Templar, a former knight who made a deal with Hell to gain immortality, and he hits harder than any main story boss outside the final fight. You can find him in the hidden crypt under the main village in the first act, but you have to collect all 3 village relics first to open the crypt door. Beating him rewards you with the Templar’s Blade, a melee weapon that deals 3x damage to all demonic enemies and can parry even unblockable fire attacks. The other three secret bosses reward you with extra health, armor, and ammo capacity upgrades that make the final act way easier, even if you’re playing on higher difficulty levels. I missed all of these during my first blind playthrough, and I was shocked at how much extra content I skipped just by sticking to the main quest markers.
Lore Easter Eggs That Tie To The Original Doom Timeline
The game is packed with tiny details that link back to earlier Doom titles, even the classic 1993 original, if you know where to look. For example, the underground bunker you find in the fifth level has the same texture pack as the first level of the original Doom, and there’s a hidden computer terminal that plays the original Doom theme song if you interact with it. A lot of players write these off as just fun easter eggs, but they’re all intentional world building details that tie the entire Doom franchise together into one single, cohesive timeline.
You can also find a copy of the original Doom guy’s bunny plushie in the attic of the village blacksmith’s shop, a nod to the iconic ending of Doom 2 where the player finds his pet rabbit dead at the hands of demons. Another easy to miss detail is the markings on the Hell Knights you fight in the final act, which have the same serial numbers as the Hell Knights the UAC experiments on in Doom 2016. That confirms the demons you’re fighting in the Dark Ages are the exact same species that show up thousands of years later, not a separate variant unique to the medieval setting. There’s even a hidden note from the original Doom guy in the final level’s secret area, written in Latin, that confirms the Slayer is the same person as the unnamed marine from the 1993 classic game.
At the end of the day, all of these small hidden details are what make the game feel so much more immersive than a standard FPS spin-off. Whether you’re replaying to hunt for secrets or just curious about what you missed during your first run, all these Doom The Dark Ages spoilers help fill in the gaps of the franchise’s larger timeline that have been left open for years. If you haven’t tried tracking down the secret bosses or alternate endings yet, I’d highly recommend jumping back in for a second playthrough – you won’t regret the extra hours you put in.
