After years of searching, Diablo 4's secret cow level has been uncovered. The mythological area was discovered through layers of bovine-themed jumping through hoops, right on the heels of the Lord of Hatred expansion's release.
If you're at all familiar with the Diablo games, you probably know about the secret cow level in Diablo 2, a hidden dungeon that requires players to follow some specific instructions in order to access it. Inside are a bunch of demonic bovidae who provide quite nice loot, as an extra reward beyond simply getting there.
