Kings Quest IV
King's Quest IV: The Perils of Rosella, released in 1988, was the first computer adventure game with a female protagonist. The player takes on the role of Princess Rosella, daughter of King Graham of Daventry (KQI and KQII) and the twin sister of Gwydion/Alexander (KQIII). KQIV was also the first PC game to support a sound card.

There are two main versions of the game designed with two different engines including AGI and SCI engines. A novelization of KQ4 is included in The King's Quest Companion.