However, other types of Class 2 gambling in US 18+ casino establishments are allowed in Idaho. It is now one of 12 states loyal to this industry throughout the United States, with 18+ casinos allowed.ĭespite the obviously liberal attitude, ID prohibits traditional slots, online poker, and Class 3 games (these include table games such as roulette and blackjack). In contrast to the harsher attitudes of neighboring states, gambling is widely available in ID. Since the beginning of the last century, gaming and slot machines have been popular here as well as in the Wild West. Idaho 18+ casinos are considered an important part of the state’s long history.