The King of Dragons is a side scrolling fantasy hack-and-slash brawler. At the start of the game up to two players can choose from five character classes which include an Elf, Wizard, Fighter, Cleric or a Dwarf, using the original D&D Edition ruleset that categorized Elves and Dwarves as separate classes. Each class gets an upgraded weapon or armor every couple of levels. The player(s) can fight through hordes of goblins, skeletons, fish people and more, and at the end of each level there is an encounter with a boss creature.
The King of Dragons was ported to the Super Nintendo in 1994 for the US, Japan and Europe. This port was developed by the nascent Prism Kikaku, which had split off from SunSoft the year previously. Prism Kikaku would change their name in 1995 to Nippon Ichi Software.