Ben Harrison was a maintainer of Angband, the dungeon-crawling roguelike game derived from Moria. He was responsible for the "Great Code Cleanup", modularizing, extending, and greatly improving the readability of the Angband source code, which lead to the large number of variants of Angband currently available. Like other maintainers, he eventually moved on to other interests, passing the title to Robert Rühlman in the year 2000.