. SHIRO Casino has been closed and no longer operates. SHIRO is a casino that offers a wide variety of online games. Browse recommended casinos. SHIRO is a casino that offers a wide variety of online games. SHIRO is a casino that offers a wide variety of online games. /10Safety Index Low by Casino Guru. The revenue of a casino is an important factor. According to our research and estimates, SHIRO Casino is a smaller online casino revenue-wise. The revenue of a casino is an important factor. According to our research and estimates, SHIRO Casino is a smaller online casino revenue-wise. There is mobile gaming, and there are several deposit and withdrawal options. There is mobile gaming, and there are several deposit and withdrawal options. There is mobile gaming, and there are several deposit and withdrawal options.