Bingo is still one of the "other" casino games that guests love to play The rules and excitement of Bingo are explained. Playing in a Bingo room allows them to play against other players or they can enjoy it at online casinos where they will play a single player kind of bingo where History · How To Play · Rules. RULES OF THE GAME. STEP 1Listen for the moderator to begin calling numbers. STEP 2Find the called number on your card(s). STEP 3Mark called number.