Keno is a classic lottery-style game that has been around for centuries, and it is popular worldwide. In the Czech Republic it's no different - the game has become a household name. Keno is played by choosing numbers from a set of 80. These numbers are then drawn randomly 20 out of 80. The more numbers you match, the more you can win. In the Czech Republic, Keno is offered legally by numerous online casinos as well as the state-run Ceska Loterie.