To play craps, you need nothing more than two dice (and players, of course). A dealer collects bets on the predicted outcomes of a single toss or number of rolls, then casts both dice in one go. Other than knowing the faces of a die, one needs no other skill to play craps.
The modern Islamic Republic of Iran is the direct successor of Persia, one of the most long-standing empires in history, having lasted for millennia. Unsurprisingly, the government has banned all forms of gambling due to the religious ban on games of chance. The ban is rigidly enforced, and international mobile online gambling casinos are blocked.