How to Unlock the Secret Cow Level - Diablo 4 Guide
For decades, the Secret Cow Level has been one of the most iconic Easter eggs in ARPG history. What started as a playful rumor in the original Diablo evolved into a beloved tradition, with Blizzard embracing the joke in Diablo 2 and Diablo 3. Now, with the release of the Lord of Hatred expansion in 2026, Diablo 4 has finally joined the fun-introducing its own Secret Cow Level, complete with bipedal cow enemies, a fearsome Cow King boss, and exclusive loot. Unlocking it isn't easy, but this guide will walk you through both methods to access this moo-sterious hidden zone (pun intended). This will help you obtain more Diablo 4 Items and other rewards.
Prerequisite: The Lord of Hatred Expansion
Before you begin, there's one non-negotiable requirement: you must own the Lord of Hatred expansion for Diablo 4. The Secret Cow Level was added alongside this DLC, which launched on April 28, 2026-roughly one week before the level was officially discovered by content creator Loathe Burger and the dedicated "Not Finding a Cow Level" Discord community on May 4, 2026.
Additionally, most steps (and both unlock methods) require you to have completed the Lord of Hatred story campaign. Some players have reported that being "moo'd" at (more on that later) doesn't work if the campaign isn't finished, so prioritize wrapping up the main story first to avoid frustration.
Method 1: The Quick Shortcut - Get "Moo'd" by a Completed Player
If you don't want to tackle the lengthy questline, there's a shortcut: get "moo'd" at by another player who has already unlocked the Secret Cow Level. This method lets you visit the level temporarily, though you won't get the full questline rewards or unlock the exclusive "Moo" emote for yourself.
Players who complete the full questline unlock a special "Moo" emote. When you stand physically close to them while they use this emote, you'll gain access to the Secret Cow Level. It's important to note that this only grants you entry-you won't be able to use the "Moo" emote yourself or "moo" at others unless you finish the questline later.
To find someone to "moo" at you, try asking in in-game chat or joining the "Not Finding a Cow Level" Discord server, where players gather to help each other access the level. Once you've been successfully "moo'd" at, head to the Kyovashad Gatehouse-the same location where you burned away a sin during the prologue's Rite of Passage quest.
Interact with the Holy Cedar Tablets there. You should see a new option labeled "Moo" above the usual choices (Fear, Anger, Pride, Greed, and Scribbles). If "Moo" doesn't appear, you weren't properly "moo'd" at-try again with another player. After selecting "Moo" and watching a short cutscene, travel to Western Skovos and find the Outcast's Journal. Interact with it, and a portal to the Secret Cow Level will spawn.
Method 2: The Full Questline - Unlock the Emote and Permanent Access
For players who want permanent access, the "Moo" emote, and exclusive rewards, you'll need to complete the full Secret Cow Level questline. This process involves three separate quest chains (introduced across different expansions) and requires collecting three key relics to combine in the Horadric Cube. Here's a step-by-step breakdown:
Step 1: Find the First Clues in Ked Bardu
Your journey begins at the fountain in Ked Bardu. Look for the Oxen God of the East statue-the only interactable statue among four surrounding the fountain. Clicking it reveals a clue: "The Oxen Gods stand as guardians to this sacred fountain. It is said that one who presents a worthy offering cleansed in these waters may gain their blessing".
Next, interact with the Old Tablet in the fountain water. Its cryptic message confirms the next step: "…spill their blood to be deemed worthy…" This is your hint that you'll need to kill a lot of cows to proceed.
Step 2: Farm 666 Cows Per Relic
To unlock the three key relics, you'll need to kill exactly 666 cows per relic-and the 666th cow must die in a specific region to drop the correct item. The game doesn't track this kill counter, so you'll need to count manually or use an external tool (like a spreadsheet or counter app) to avoid mistakes.
Each relic references a classic Diablo 2 item tied to the original Cow Level, and their drop locations are region-specific:
Bloody Wooden Shard (a reference to Wirt's Leg): Drop when the 666th cow is killed in Kehjistan or Hawezar
Musty Tome (a reference to the Town Portal Tome): Drop when the 666th cow is killed in Fractured Peaks or Scosglen
Intricate Metallic Fragment (a reference to the Horadric Cube): Drop when the 666th cow is killed in Dry Steppes
The most efficient strategy is to farm cows anywhere until you reach 665 kills, then travel to the required region for the final kill. Cows spawn consistently in Ked Bardu's surroundings and the Dry Steppes (southwest of Faro Bru), making these ideal farming spots. Note that each relic drops only once per character, so many players use three different characters to speed up the grind.
Step 3: Cleanse the Relics and Craft the Key
Once you have all three relics, head back to the Ked Bardu fountain to cleanse them. Simply drop each relic briefly in the fountain water-this purifies them for the next step. Next, interact with the four Oxen statues around the fountain in order: East, North, West, South. Offer each cleansed relic to its corresponding statue.
After offering all three relics, you'll receive the Strange Key. This key unlocks the cellar at the eastern edge of Scosglen, which is shaped like a cow's head. Be careful-losing the key before using it means restarting the entire quest chain. Once you use the key, the cellar (called Forlorn Hovel) stays permanently unlocked for your character, though party members will need to teleport to you if they haven't unlocked it themselves.
Step 4: Complete the Final Rituals and Unlock the Portal
Inside the Forlorn Hovel, you'll find eerie cows and dead villagers. Your goal here is to kill all the cows-the last one will drop a Stamina Potion, a nostalgic nod to Diablo 2 (where stamina management was crucial) that grants +5% movement speed for 5 minutes.
Next, return to the Holy Cedar Tablets in Kyovashad Gatehouse (as in the shortcut method) and select "Moo" (this time, you'll have unlocked it permanently). After the cutscene, head to Western Skovos, interact with the Outcast's Journal, and the portal to the Secret Cow Level will appear. This time, you'll have permanent access and the "Moo" emote to share with others.
What to Expect in the Secret Cow Level
The Secret Cow Level is a chaotic, cow-filled dungeon where you'll face hordes of bipedal cow enemies wielding polearms. At the end of the level, you'll encounter the Cow King-a powerful boss that drops exclusive loot, including the Cow King's Crown, a mythic unique helm with absurd, day-of-the-week-themed affixes (e.g., increased movement speed on Fridays).
The Cow King's Crown always has the same stats and can be salvaged for 666 Hide-a playful reference to the game's dark humor. You'll also find Prime Rib, a mysterious quest item that can't be salvaged (its full purpose is still unknown). Additionally, you can fish for a hidden mythic fish called the Chromatic Dreamfish on Cow Island, which you can access by selecting "Leave Dungeon" while in the Secret Cow Level.
Pro Tips for Success
Use AoE damage classes (Necromancer, Sorcerer, Barbarian) to clear cow packs quickly-speed is key when farming 666 cows per relic.
Coordinate with friends: Relics are tradeable, so splitting the grind (each person farms one relic) can save hours of time.
Track your kills: Use an external counter to avoid overcounting or undercounting-missing the 666th kill in the right region means starting over for that relic.
Don't skip the campaign: The Lord of Hatred story is required for both unlock methods, so finish it first to avoid wasted effort.
Unlocking the Secret Cow Level in Diablo 4 is a labor of love, but it's well worth the grind for the nostalgia, exclusive loot, and bragging rights. If you want more resources, you can choose to purchase cheap Diablo 4 materials and gold. Whether you take the shortcut or complete the full questline, this hidden Easter egg honors the series' legacy while adding new twists for modern players. Now grab your weapon, sharpen your skills, and get ready to moo-ve through hordes of cows-your reward awaits.