Yep, Dice.
Do this $1 at a time. When it busts, take another $1 from the vault, rinse and repeat
Balance / 100
Starting chance 98
Every 1 lose, set win chance 19.8
Every 1 Win reset amount
Every 1 lose increase 25%
Streak greater than 3 lose switch over under
Greater than or equal to 0.00000001 profit set win chance 98