Dice is the simple game AFAIK.
Martiangle is the way to earn quick profit but do not let it go because it will make you loss for long term ( I'm ever experience it too )
You can try high risk high reward method, sometimes it's better than martiangle and also faster !
You sure martiangle method works I have tried it only twice and haven't won anything.
And also why gamble in the first place when you know it risky and gambling with higher reward is even riskier , people simply want to lose there money