Riddle of the Sphinx: An Egyptian Adventure is a 2000 graphic adventure game developed by Old World Studios and published by DreamCatcher Interactive. It received a sequel entitled The Omega Stone: Riddle of the Sphinx II in 2003. A remastered version Riddle of the Sphinx: Awakening was released in 2021. The gameplay is similar to any game in the post-Myst style where players navigate through 360 panoramic screens and manipulate items to advance. The game's plot is about a young archaeologist in Egypt who searches for a missing mentor Sir Gil Blythe Geoffreys.