Eye of the Beholder featured a first-person perspective in a three-dimensional dungeon,similar to Dungeon Master. The player controls four characters, initially, using a point-and-click interface to fight monsters.This can be increased to a maximum of six characters, by resurrecting one or more of the dead NPCs bone remains or finding NPCs that are found throughout the dungeons.
The possibility to increase the size of the player’s party through the recruiting of NPCs was a tradition in all of the Eye of the Beholder series. It was also possible to import a party from Eye of the Beholder into The Legend of Darkmoon or from The Legend of Darkmoon into Assault on Myth Drannor; thus, a player could play through all three games with the same party.