IGT, having now merged with GTech, was always considered to be the leader in the industry with seemingly every other slot in a casino having their name attached. Pioneers in both mechanical and video slots, and video poker, IGT is everywhere! Their most popular brand is Wheel of Fortune, with over 200, yes 200 versions of it produced to date- and I have a feeling much more to come. In addition, whenever you see Double Diamond or Triple Diamond, guess what? That's IGT! Other popular brands also include Top Dollar, Cleopatra and Black Widow. IGT was also responsible for many of the early video slots, such as Super Cherry for example, that now have a certain “old-school” nature to them when compared to today’s offerings, and still quite fun to play if you can find them!