Diablo 4 and Diablo Immortal are crossing over with Kentaro Miura’s legendary dark-fantasy manga Berserk, and now Blizzard has revealed more details on what the franchise’s first non-Blizzard IP collab will involve.

Unlike some crossovers that are solely an opportunity to buy themed skins, the Diablo and Berserk crossovers do actually add new events for players to participate in and free rewards to claim, though most of the “good” stuff will cost extra. Diablo 4’s Berserk crossover event will begin May 6 and run through the end of Season 8, approximately three months later. Diablo Immortal’s Berserk events will run May 1-30.

In Diablo 4, players will hunt elite enemy packs in order to gather Behelits that can be used to unlock free Berserk cosmetics in the Berserk Reliquary, part of Diablo 4’s newly revamped battle-pass system. Some of those items include a Brand of Sacrifice marking that can be used in character customization, as well as Skull Knight’s shield as mount armor and Griffith’s Helmet as a back trophy.

Unfortunately, the cosmetics players are likely really looking for are all relegated to Diablo 4’s in-game shop. That includes series protagonist Guts’ Berserker armor, as well as looks for series antagonist Griffith, the mysterious Skull Knight, and an armor set inspired by Guts’ mercenary days. Griffith’s steed and accompanying mount armor will also be for sale, alongside a pet bundle featuring the all-nose Chimimoryo.

Blizzard’s free-to-play mobile game Diablo Immortal is also getting in on the Berserk action, and in many ways has more to do than Diablo 4. It will add a boss fight against the fearsome Nosferatu Zodd, and even let players participate in Berserk’s most infamous moment: the Eclipse.

In the Berserk manga and anime, the Eclipse is the story’s bleakest point, where just about everyone dies, to put things lightly. While the Eclipse is active in Diablo Immortal, players will be transported to a nightmarish hellscape where they will need to band together to fight for their lives as if they had been marked with the Brand of Sacrifice, and can even encounter a new boss sent to do the Godhand’s bidding.

Diablo Immortal is additionally introducing a new Legendary Gem inspired by the Crimson Behelit, which will increase damage dealt while above 50% health, reduce damage dealt when below 30% health, and can release a howl of terror to fear nearby enemies. New Golem familiar skins will also be added.

There will of course be cosmetic armor sets based on the Berserker armor and Griffith’s armor for sale as well, in addition to some free Berserk-themed login rewards that can be claimed. Those free login rewards include a free weapon-appearance cosmetic, among them Guts’ Dragonslayer greatsword, though the first weapon cosmetic claimed will be specific to the class currently being played–so choose wisely.

Diablo 4 Season 8 begins April 29, and will introduce the Lair Boss system which overhauls much of Diablo 4’s endgame loop. Blizzard recently laid out what to expect for Diablo 4 in a 2025 roadmap–one that includes more endgame revamps and another still unannounced IP crossover. Meanwhile, Diablo 4’s second expansion won’t be coming until 2026.