King's Quest I: Quest for the Crown
King's Quest is an adventure game developed by Sierra On-Line and published originally for the IBM PCjr in 1984 and later for several other systems between 1984 and 1989. The game was originally titled simply as King's Quest; the subtitle Quest for the Crown was added to the game box in the 1987 rerelease, but did not appear in the game itself.
It is as the first official part of the long King's Quest series (not counting 1980's Wizard and the Princess), in which a young knight, Sir Graham, must save the Kingdom of Daventry to become the king. Designed by Roberta Williams, the game was revolutionary and highly influential in the evolution of the graphic adventure game genre by introducing more detailed graphics and animation.