Bonus rounds and free spins as devices

8 July 2026 · filed under Bonus rounds

A bonus round is a second machine hiding inside the first, usually with different rules. The interesting question is not how to reach one but what changes once you are in it.

When a machine opens a bonus round it is, in effect, swapping itself for a different machine for a while. The strips may be recomposed, the paytable may be scaled, the grid may grow. Treating the round as simply more of the same play is how people end up surprised by it in both directions.

Free spin rounds

The most familiar device gives a fixed count of spins that do not consume further stake. Very often something else changes at the same time, and that something else is the actual point of the round. A symbol may be removed from the strips, or a substitute may be made permanent in a column, or a multiplier may climb as the round proceeds.

Whether the round can extend itself while running is the detail that most changes its character, because a round that can renew itself has no fixed ceiling on its length.

Hold and respin

A second device locks certain symbols in place and respins only the empty positions, resetting a small counter every time something new locks. The round ends when the counter runs out or the grid fills. It converts a spin into a short game of its own with a visible state.

Pick rounds

The third common device presents a set of hidden choices and reveals what is behind the ones you select, usually ending when a stop symbol appears. The choosing is presentation rather than skill: the outcome is settled by the same process that settles a spin.

Recognising which device is in front of you is worth doing, because each one asks for a different sort of attention and only one of them has any state worth watching.