Dragonworld is an interactive fiction computer game with graphics. The game was published by Telarium (formerly known as Trillium), a subsidiary of Spinnaker Software, in the year 1984. The game was written by Byron Preiss and Michael Reaves. The story is based upon their novel Dragonworld (Doubleday 1979). Source: Wikipedia, "Dragonworld (video game)," available under the CC-BY-SA License.