Released in 1994 by Capcom, Dungeons & Dragons: Tower of Doom is an arcade beat 'em up that precedes Shadow over Mystara. The Asian release (940113 Asia) maintains the same core gameplay as other regional versions, featuring cooperative play for up to two players, iconic D&D character classes, and a side-scrolling action adventure across multiple levels. It might include localized text and any other market-specific adjustments. 

Dungeons & Dragons - tower of doom (940113 Asia)

Dungeons & Dragons - shadow over mystara (960619 Japan)