|Odyssey: The Compleat Apventure|
|Preceded by||Wilderness Campaign|
|Followed by||Apventure to Atlantis|
|Twitch||Odyssey: The Compleat Apventure Channel|
|YouTube Gaming||Odyssey: The Compleat Apventure Channel|
Odyssey: The Compleat Apventure is a videogame written by Robert Clardy and released by Synergistic Software in 1980. It was created for the Apple II platform and is considered one of the first microcomputer-based role-playing games. The title was intentionally misspelled; "Apventure" is a reference to the Apple computer.
Although primitive by today's standards, Odyssey was considered cutting-edge for its time, making use of the Apple II's two graphics modes (high-resolution and low-resolution), and text. The game was written in Integer BASIC and was one of the first microcomputer games to be created using multiple programs, requiring floppy disc activation and access mid-game. (This feature, however, led to a way in which the player could cheat: by removing the disk when the computer required access, a cursor flashes on screen; typing "goto 770" would fool the computer into thinking that the player had just opened up a treasure box. This is one of the earliest known examples of a cheat code.) Prior to this, most games were self-contained, single programs; Odyssey was split into several different programs and took up an entire disk. The game also made use of rudimentary sound effects.
A forerunner of Akalabeth and Ultima, Odyssey is a multi-part adventure game that places the player in the role of the leader of an army who sets out to vanquish an evil wizard. Elements of Dungeons & Dragons can be found within the game, which combines elements of two earlier games written by Clardy: Dungeon Campaign and Wilderness Campaign.