Microgaming Software Systems Ltd is a privately held software development company. It was founded back in 1994 and is based in the Isle of Man. Microgaming specializes in gaming software and developed some of the most popular casino games of all times. These include the vampire-themed Immortal Romance Slot and the Game of Thrones Slot. World Leading Game Developer In the last 25 years, Microgaming has produced more than 1,000 games. It is without a doubt the most successful casino game developer worldwide. The company supplies more than 800 world leading online casino brands such as LeoVegas, Casumo and BetClick.