King’s Quest 6 features an open world with many of the quests being optional. Cassima is held captive in her castle and Alexander must find a way to rescue her.
The Isle of the Crown where Cassima resides has been taken over by an evil vizier. This time it follows the adventures of Prince Alexander as he searches for his lost love, Princess Cassima in the Land of the Green Isles. King’s Quest 6: Heir Today, Gone Tomorrow was released by Sierra in 1992.