In order to honor the late Kevin Kanai Griffith, a Blizzard developer who died in 2014, the company has created a new Secret Cow Level in Diablo III. The level will only exist during the month of March, which was Griffith’s birth month.
Patch 2.4.0 brings the new Cow Level. Getting to it involves entering the Immortal Throne in the Ruins of Secheron, which is in Act III of the game. A video from YouTube user MadTom shows the process.
This is a far easier process than other crazy stuff in Diablo, so be sure to do it if you have the game and some free time. Again, this special level will only be open during the month of March.
Get ready for some bovine brutality.