Inmates operated inside a building that was called "the bullpen. Nevada State Prison did the unthinkable and opened a casino for inmates. Between 19a Nevada style casino operated inside the Nevada State Prison. Desde a , los reclusos de la prisión estatal de Carson City, en el estado de Nevada, gestionaron su propio casino. For 35 years this inmate-run gambling operation coexisted in a place. It was this ruling that saw Nevada State Prison take the unprecedented step of opening an inmate-run casino known as the “Bullpen” in Never had the state of Nevada seen so much misery that it decided to authorize gambling on March 19, in an attempt to clean up its public. Inmates operated the "Bullpen," a stone building converted into a casino, on the grounds of the year-old state prison in Carson City. " The bullpen was an old building in the prison that was converted into a casino. Nevada State Prison 'Bullpen' offered every game of chance, and the brass gambling tokens are now highly collectible. Nicknamed the Bullpen, the casino was a success for three decades before it was. The Bullpen was also equipped with a variety of traditional casino games for inmates to play with and against each other. . This included blackjack tables, poker.