Diablo IV is about to do something beautifully unholy: a crossover with DOOM: The Dark Ages that lands March 11 — the same day Season of Slaughter kicks off.
And the best part? This isn’t just “shop bundle, good luck.” Blizzard is rolling out a free event reliquary packed with 10 DOOM-themed cosmetics, earned with event currency you farm in normal gameplay.
Here’s the quick, practical breakdown so you can get the goods without turning your playtime into a second job.
What the DOOM crossover includes
The event includes a free reliquary track featuring 10 cosmetics, with DOOM-flavored items like weapon skins and trophies (examples being shared include things like a Shield Saw weapon skin, Slayer’s Flail, and a Cyberdemon head trophy).
There are also shop cosmetics, because of course there are — but the core takeaway is: the free track is real, and it’s the main reason this event will pop off.
How you earn event currency
Blizzard’s setup is straightforward:
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You earn a DOOM event currency (often described as “Dark Ages” currency) by killing Elites and Champions.
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There are special DOOM chests tied to Lair Bosses, which is Blizzard’s way of nudging people into boss content during the event window.
In other words: you don’t need some weird mini-game. You just need to keep playing the parts of Diablo IV that already print loot.
The fastest “don’t overthink it” farm plan
If your goal is to clear the free reliquary efficiently:
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Prioritize routes with frequent Elites/Champions
That’s your reliable currency drip. -
Mix in Lair Boss runs when you want burst progress
Because the event calls out DOOM chests from Lair Bosses specifically. -
Don’t ignore your normal Season of Slaughter loop
This event is landing right as Season 12 starts, so your “season routine” and your “event grind” should overlap naturally.
Why this crossover is actually smart timing
Season of Slaughter is built around momentum and spectacle — and DOOM’s entire brand is basically “momentum and spectacle, but louder.”
Dropping the crossover on March 11 means Blizzard gets:
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day-one season hype
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plus crossover hype
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plus a reason for people to keep logging in for cosmetics
That’s a clean engagement stack, and it’s going to work.
The takeaway
Diablo IV’s DOOM crossover isn’t a side distraction — it’s a March 11 bonus loop: kill Elites, scoop currency, hit Lair Bosses for chests, and walk out looking like Sanctuary’s angriest medieval space marine.
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