Free Ultra Hot game! If you are an avid casino gamer, then you will surely enjoy Ultra Hot, one of the most widely played games that is available. GAMES - Play Online Flash games for free on ffv-nb.de Sizzling hot Free Game (5 times); Book of Ra online game ( times); Ultra Hot ( times); Always hot ( times); Lucky Book of Ra Deluxe –. This is classic 3 reel slot game and we can say it is the little brother of famous Sizzling hot and Ultra hot games. We hope our gamers will enjoy.