Diablo III, Third Anniversary Cow Level

Easter Egg video by Blizzard showing off the Third Anniversary prize, a Diablo 3 recreation of the Diablo 2 Secret Cow Level. Play in Adventure Mode and find the golden cow who acts like a Treasure Goblin. When killed he’ll open a red portal to the Secret Cow Level. Limited time promotion; May 15-22, 2015 only. Full details and screenshots here: