Cosmic Osmo and the Worlds Beyond the Mackerel is a graphic adventure computer game for the Macintosh computer line (Plus, SE, SE/30, II Series, Classic, LC) created by Cyan Worlds . It was published in 1989 and won the 1990 Mac User award. It was also ported to the PC platform in 2007. Like Myst, this game features a point and click interface. The player clicks on various elements in a scene to trigger events. To move between scenes and rooms, the player clicks on doors or near the edge of the screen.