Secret Cow Level

The secret cow level, or simply the cow level, is a level featured in the action role-playing hack and slash video game series Diablo, developed and published by Blizzard Entertainment. It first appears as postgame content in 2000's Diablo II, where it is officially known as the "Moo Moo Farm". Players may access the level after collecting a special combination of items to conjure a portal leading to the level. The player character is confronted upon arrival by a large horde of armed anthropomorphic cows led by a boss character called the "Cow King".