'His spirit and legacy will always live on in the many games he’s touched with his stunning art, as well as the hearts of every individual who had the honor of knowing him,' Blizzard writes.

Unfortunately, Kevin passed away on October 17, 2014. First off Ive never played the campaign (shame on me) I got diablo 3 last year did part of a season quest got bored. Throughout treatment he continued to work on Diablo III, and was instrumental in the creation of the weather and day/night cycles in the game's Adventure Mode. In 2012, Kevin was diagnosed with a rare type of cancer called Alveolar Soft Part Sarcoma (ASPS). He also worked on the Reaper of Souls expansion. Throughout his long career at the company he worked on some of its biggest hits including World of Warcraft's Burning Crusade, Wrath of the Lich King, and Mists of Pandaria expansions, the accompanying Trading Card Game, and finally making the leap onto the Diablo III team. Back in 2005, a Diablo fan named Kevin Kanai Griffith joined the Blizzard team as an artist. In order to find it, you should follow these steps: Speak to Zoltun Kulle in any acts base camp, starting the quest to find the cube.

But there's a deeper meaning behind the cube too.

How to use the cube in diablo 3