The free Double Diamond slot is relatively straightforward. After the success of the Double Diamond slot machine, IGT developed other classics such as Da Vinci Diamonds slot and Cleopatra slot. The line bet system allows simple betting with no room for confusion. The controls and gameplay are easy to master, and the paytables are simple to understand. The theme is based on diamonds and riches – exactly what is expected from a casino. IGT created an instant classic that featured awesome graphics, simple gameplay, and traditional 3-reel mechanics. The Double Diamond slot is a world-renowned 3-reel game that helped revolutionize the virtual slot industry. Double Diamond Slot Machine: Free Play No Download