However, note that the Cube is down a level from the Ruins in The Elder Sanctum map.

You can pick up this quest immediately in Adventure Mode - you may want to do it while you’re leveling up just to get your ducks in a row. To get Kanai’s Cube, first take Zoltan Kulle’s quest from any city hub on the map and then travel to the Ruins of Sescheron map in Act 3. The location of the cube in Diablo 3 isn’t quite as spelled out in the quest as you might think. So let’s talk about Kanai’s Cube and how and where you can pick it up for your own needs. It’s not tough to find as long as you know where to look, but the quest giver is not the most helpful chap - to be fair, you did kind of kill him. If you would like to get your hands on Kanai’s Cube but you’ve never played Diablo 3 before, or you’re coming back to experience Kanai’s Cube-O-Rama please don’t be intimidated.

If you’re going to use Kanai’s Cube in Diablo 3‘s Season 20, your first order of business will be to go find it.

Kanai's cube diablo 3 materials