Play Online Keno Keno is one of the easiest games to play at Royal Vegas Online Casino and offers players tons of fun. Keno is a popular game played in casinos around the world and it is thought that this game originated in ancient China. Keno is played with a numbered board with numbers ranging from one to eighty. Twenty balls appear one at a time, similar to a lottery. The idea of the game is for players to predict which balls will appear and mark off the numbers on a Keno card. At Royal Vegas your Keno card is automatically marked off. At Royal Vegas you can play Keno directly from your browser or when you download the casino software. Similar games appear in the Unique Games section in the casino software. Here you can enjoy a variety of lottery-style and scratchcard-style games. Related info: Enjoy playing video slots at Royal Vegas. Place your bets against the Dealer with online blackjack. Take part in exciting casino promotions to win great prizes.