• Strata StudioPro...
  is responsible for the exquisite 3d renderings that make Riddle of the Sphinx™ so engaging. <www.strata3d.com>
• Macromedia Director...
  was used to program the puzzling puzzles. <www.macromedia.com>
• Adobe Photoshop...
  for post-processing and specialized compositing work. <www.adobe.com>
• Equilibrium Debabelizer...
  for batch processing anything. Saved us hundreds of hours! <www.equilibrium.com>
• SoundEdit 16 & Deck II...
  are digital audio workhorses! <www.macromedia.com>
• Media Cleaner Pro...
  'cleaned' and compressed our digital video and 3D animations! <www.terran.com>

Although there are more we are not mentioning, the above tools were used the majority of the time and played crucial parts in the development process of Riddle of the Sphinx™!