There's no such thing as low risk in gambling that is why before you sign up you are recommended by the casino to read their TOS which states that you should only play with money that you can afford to lose, a casino is not the place to grow your money, this is not a cash cow where you extract your money and there's no game that can offer you low risk if there's one, people who want to make on gambling will just play that game only, you should change your perception about gambling instead, you are making a wrong approach to gambling.