When it comes to books or movies, the first in a series is usually the best. However, in the case of video games, this is the exception rather than the rule. Hence, it probably will come as no shock to you when I say that the sixth installment in the King's Quest series is hands down the best of the bunch. Now, before anyone objects, let me explain why.
When it comes to other Sierra "Quest" games, it's very hard for me to choose which is the best from each particular series. That said, I don't have any such reservations when it comes to the King's Quest collection. Prince Alaxander's journey to find his lost love, Princess Cassima, is the high point of the series. Outside of fan remakes, I would recommend this adventure game to curious newcomers and nostalgic veterans alike. It's point-and-click adventure gaming from a golden era when the genre was at it's best.