Chronomaster

Chronomaster is an adventure game developed by DreamForge Intertainment for MS-DOS compatible operating systems and published by IntraCorp on 20 December 1995. Its main plot was written by novelist Roger Zelazny and was his last known work, since he died during the game's development. Because of Zelazny's passing, Dreamforge used in-house puzzle and game designers John McGirk and Aaron Kreader to complete a majority of the game puzzles, while leaving the overall game plot and concept intact according to Zelazny's vision.