Shadowkeep

Shadowkeep is an role-playing video game and graphical interactive fiction video game with graphics. The game was published by Telarium (formerly known as Trillium), a subsidiary of Spinnaker Software, in the year 1984. It was the first video game that inspired a novel (Shadowkeep, Warner Books 1984 by Alan Dean Foster). Source: Wikipedia, "Shadowkeep (video game)," available under the CC-BY-SA License.