One of gaming’s greatest secrets began as a complete lie — and ended up becoming one of the most beloved hidden levels ever made.
The Rumor
When the original Diablo (1996) was released, a persistent internet rumor claimed there was a secret level filled with killer cows, accessible by clicking on the cows in Tristram enough times. It was completely false. Blizzard even posted an official denial.
But the developers never forgot — and they got the last laugh.
The Secret Cow Level in Diablo II
In Diablo II (2000), Blizzard secretly made the rumor real. Tucked behind a Horadric Cube recipe is a portal to the Secret Cow Level — an entire hidden zone populated by axe-wielding anthropomorphic cows called Hell Bovines, led by the fearsome Cow King.
How to Unlock It
- Complete the main campaign (defeat Baal).
- In Act I, find the corpse of Wirt in Tristram and take his wooden leg: Wirt’s Leg.
- Combine Wirt’s Leg and a Tome of Town Portal inside the Horadric Cube and transmute them.
- A red portal to the Moo Moo Farm will open.
The Catch
If you kill the Cow King, you are permanently locked out of opening the portal again on that character in that difficulty. The game rewards you for visiting — but punishes you for going too far.
“There is no cow level.” — Blizzard’s official denial, 1996. Also a famous Starcraft cheat code.
The Secret Cow Level was so beloved that it has been referenced or recreated in multiple Blizzard games since, including Diablo III, Diablo IV, Heroes of the Storm, and even World of Warcraft.
The fact that this started as a troll rumor and Blizzard turned it into actual content is peak game dev energy. ‘There is no cow level’ became a Starcraft cheat code. The commitment to the bit is legendary.
Wirt’s Leg has been sitting in my stash since Act I for three playthroughs before someone told me what it was for. The game gives you zero hints. That’s what made the discovery culture around Diablo 2 so special.
The original restriction where killing the Cow King locked you out permanently was such a cruel design choice. Finding out too late cost me hours of progression. The Resurrected change was the right call.