The game was originally planned to be released on Sega Dreamcast in 1998. The developers, however, didn't find a publisher for the game at the time and it remained unreleased until 2013. Early concept art of this version features a female warrior, though in the eventual game the warrior is male.

Dragon's Crown's character select screen is almost identical to the one in Capcom's Dungeons & Dragons: Tower of Doom. George Kamitani, the director of Dragon's Crown, worked as one of the designers on Tower of Doom, so this most likely is an homage to his earlier work.

The Killer Rabbit boss fight is a clear reference to the Rabbit of Caerbannog from Monty Python and the Holy Grail.