Eye of the Beholder was released for the Game Boy Advance that uses a "stripped down version of the 3rd edition D&D rules" with "only four basic character classes". It is not a port of the original game, though it possesses roughly the same plot. It bears stronger resemblance to the original Gold Box games, such as Pool of Radiance. Eye of the Beholder is similar to the early CRPG Dungeon Master, released in 1987 by FTL Games. Source: Wikipedia, "Eye of the Beholder (video game)", available under the CC-BY-SA License.