Bet Min is the counterpart of Bet Max: one click sets the stake to the lowest value the slot accepts. It suits players who want long sessions on a small budget, or who are trying out a new game before raising their stake.
There is a catch on games with adjustable lines. To reach the lowest possible stake, Bet Min may reduce the number of active paylines, sometimes to a single line. A combination that lands on a disabled line then pays nothing, so players who want full coverage should lower the coin value instead and keep every line switched on.
For operators, the minimum stake is set per game and often per currency. Low entry stakes help attract casual players, and they are one reason to offer a broad catalogue that covers both low-roller and high-limit titles.