End-Condition Free Spin
Free Spins
A type of free spins with no set number of spins, which instead ends when all of a specific 'end symbol' are collected.
Retrigger
Free Spins, Again
A Retrigger means winning additional free spins by landing scatter symbols again during a free spins bonus round.
Furthermore, some slots adopt an 'unlimited retrigger' system, which means there is no limit to the number of times it can re-trigger. In theory, if luck is on your side, the free spins can continue indefinitely, making it one of the most powerful features a slot can have.
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Gateway Free Spins
Free Spins
A 'gateway' style of free spins where you must complete a specific mission to advance to the next, more powerful bonus stage.
Multi-Mode Free Spins
Free Spins
A structure where a single game contains two or more distinct free spin modes, each with its own trigger and rules.
Selectable Free Spins
Free Spins
A feature that allows the player to choose the nature of their free spins (e.g., number of spins, multiplier) upon entering the bonus.
Showdown Spin
Free Spins
A unique two-stage free spin bonus where assets gathered in a 'collection' phase are unleashed during a final 'showdown' phase.
Special Reel Set
Free Spins
A feature where the bonus round is played on a separate set of reels with a richer symbol configuration than the base game.
Sticky Win Combos
Free Spins
A feature where, during free spins, the symbols that contributed to a win are held in place, providing a guaranteed win on every subsequent spin.
Symbol Release
Free Spins
A feature where specific symbols are collected during a set number of spins, then released all at once on the final spin to create a big win.
Unlimited Retrigger
Free Spins
A retrigger feature with no limit on the number of times you can win additional free spins.
Persistent Free Spin Grid
Free Spins
In the bonus game, the destruction progress of the game grid (cleared blocks or empty spaces) is preserved across all free spins, with the grid not regenerating its original state between spins.
All Slots with This Feature
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