By Hi-Low i guess you mean dice games were you can roll a dice and you win if you chose to bet high (say above 50) and managed to roll a high number, right? Yeah it is quite easy to play. The payout mostly depends on your win chance. The lower your win chance the higher will be your payout. Make sure to double check your auto bet settings and keep an eye sometime when running your bet cause you can easily get wiped off (or win real big but if you keep running it for a long time, high chance you will lose everything) for your small mistakes.
You can try dice Hi-Low at crypto-games.net. They have autobet bot and a wonderful community!