Enjoy classic and modern online slots from one of the leading slots loads in a browser window meaning no downloads, and they are all absolutely free to play. IGT Slots. Free IGT slot machines with no pop-ups - instant play Las Vegas IGT slots with no registration required. IGT slots are massively popular in Las Vegas. IGT (International Game Technology) is the largest designer and manufacture of slot machines in the world. Of course, they've recently made headlines by. Free Slots No Download. The cabinets are user-friendly, flexible and offer great value to casinos investing in. Best IGT Slots online casinos View all casinos. Slots are not everything that IGT company is famous. Site Map -- XML Site Map.