Tower of Doom

Tower of Doom is a roguelike RPG programmed by INTV Corp. for the Intellivision and released in 1987. Though not a licensed Advanced Dungeons & Dragons title, it is unofficially considered the third member of a trilogy of RPGs for the Intellivision, begun with Advanced Dungeons & Dragons: Cloudy Mountain and Advanced Dungeons & Dragons: Treasure of Tarmin.

An unreleased prototype of a port for the Atari 2600 exists.