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PLAYABLE MECHANIC CATALOGUE

Slots with free spins demos

Compare slot demos with free-spin features, including triggers, retriggers, persistent modifiers and changed bonus grids.

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Games with a documented matching mechanic

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EDITORIAL OVERVIEW

How free spins work

Free spins are awarded game rounds that do not deduct an additional virtual stake for each included spin. They are a slot mechanic, not the same thing as a casino promotion offering promotional spins.

The trigger can use scatters, collected symbols or another event. The number awarded, retrigger requirement and any cap belong to the individual game's rules.

Some features closely resemble the base game while others introduce multipliers, expanding wilds, changed reel sets or persistent collections. A free-spin label alone does not describe the likely result or mathematical return.

In demo mode, follow the feature until the game displays the total and returns to the base state. Intermediate cascades or respins can still belong to one awarded spin.

FREQUENTLY ASKED QUESTIONS

Questions about this topic

Are free spins guaranteed to produce a win?

No. They are game rounds governed by the feature rules and can finish with different results.

Are in-game free spins the same as a casino bonus?

No. This page covers a game mechanic, not promotional offers from gambling operators.

Can a free-spin feature use a different layout?

Yes. Some titles change reels, symbols or modifiers during the feature.

Can free spins retrigger?

Some can, but the required symbols and limits are title-specific.