Once you enter the portal you'll find yourself in the Moo Moo Farm, a level populated exclusively by bipedal Hell Bovines wielding polearms, which spawn in groups of 5-10. The portal remains open until you save and exit. Once you transmute these, a red portal will be opened wherever you're standing in the Rogue Encampment: if you do so while standing at the exit to the Blood Moor, then the portal may open just outside and be labelled No Level Name rather than The Secret Cow Level, but it still leads there.

Once you have any Horadric Cube, return to Act I and place a Wirt's Leg from that completed difficulty in it with a Tome of Town Portal, which can be bought from Akara. You should already have picked up a Horadric Cube while completing the difficulty: it can be found in the chest guarded by Bloodwitch the Wild on the third level of the Halls of the Dead under the Dry Hills in Act II, or it will drop from the second Super Unique Council Member killed in Travincal in Act III for any character that does not already have one in inventory or stash. It can still be used to open the portal even after being modified in any way.

Ideally it should be picked up for the first time while completing the Search for Cain, although the portal to Tristram can (still) be found at the Cairn Stones in the Stony Field.īefore you use it to open the portal it can also be used as a weapon, like a club: it may have sockets, and it can also be imbued by Charsi after returning her Tools of the Trade. Wirt's Leg requires 3x1 inventory space, and can only be picked up if one is not already equipped or present in inventory or stash. Click on him, and his peg leg drops in a fountain of gold. In the west corner of Tristram in Act I, Wirt's body can be found lying by the river, with a Carver Shaman and Carvers always nearby.

However, you need to find some items before you can do so. After completing a difficulty by killing Diablo (or Baal in Diablo II: Lord of Destruction), you can open a portal to the fabled Secret Cow Level back in the Rogue Encampment of Act I.

Diablo 2 cow level