MoneyColour

There are 20 slots and each contains an amount between 1,000 and 20,000, you can choose until 10 of these.

On each turn the screen displays a starting value of one and begins to rise slowly in 1,000 steps. As long as the max amount of that slot has not exceeded its limit, you may shut it off any time by touch the amount (at which point the displayed amount is added to their total).
However, if the amount reaches its limit and continues to run without being stopped, you don't get money for that turn.

If it becomes mathematically impossible to reach the jackpot with the remaining slots, the game ends immediately.