What Are Free Spins in Slots? How Free Spin Bonuses Work

Free spins are bonus spins that let you play a slot without placing the normal wager for each individual spin.

They are one of the most common bonus features in online slots and are usually triggered by scatter symbols, bonus symbols or other game-specific mechanics.

Free-spin rounds can also introduce extra features such as multipliers, sticky wilds, expanding symbols or increasing payout potential.

If you are new to slots, start with our beginner's guide to online slots.

What Are Free Spins?

Free spins are a number of bonus spins awarded by the slot.

Instead of manually placing a new wager for each spin, the game runs the awarded spins according to the rules of the feature.

For example, a slot might award:

• 8 free spins

• 10 free spins

• 15 free spins

• 20 free spins

The number of spins and the mechanics used during the bonus vary from game to game.

How Do You Trigger Free Spins?

Free spins are commonly triggered by landing a required number of special symbols.

For example:

• 3 scatter symbols may trigger 10 free spins

• 4 scatter symbols may trigger 15 free spins

• 5 scatter symbols may trigger 20 free spins

This is only an example. The exact requirements depend on the individual slot.

Scatter symbols are especially common in free-spin features because they often do not need to land on a traditional payline.

You can learn more in our guide to wild and scatter symbols.

What Happens During Free Spins?

A free-spin round may work similarly to the normal game, or it may introduce completely different mechanics.

Common free-spin features include:

• Extra wild symbols

• Sticky wilds

• Expanding wilds

• Increasing multipliers

• Additional reels or symbols

• Improved bonus mechanics

• Retriggers for additional free spins

This is why the free-spin feature is often one of the most important parts of a modern slot.

Are Free Spins Really Free?

In a slot bonus feature, “free spins” generally means you do not place the normal wager again for each awarded spin.

However, you usually need to trigger the feature through paid gameplay first unless the casino or slot offers another way to access it.

Some games also offer a bonus buy, where players can pay a specified amount to enter the feature directly.

We will cover bonus buys in a separate guide.

How Are Free-Spin Wins Calculated?

Wins during free spins are calculated according to the rules of the individual slot.

The payout can depend on:

• The original bet amount

• The symbols that land

• Any active multipliers

• Wild symbols

• The payline or ways-to-win structure

• Special bonus mechanics

If you want to understand line-based wins in more detail, read our guide to slot paylines.

Can Free Spins Have Multipliers?

Yes.

Many slots include multipliers during free-spin rounds.

For example, a free-spin feature might begin at 1x and increase after each qualifying win:

1x → 2x → 3x → 5x → 10x

Other games may attach multipliers to specific wild symbols or random events.

The exact mechanic depends on the game.

What Is a Free-Spin Retrigger?

A retrigger happens when the player earns additional free spins while already inside the free-spin feature.

For example, landing another set of scatter symbols during the bonus might award five extra spins.

This can extend the feature beyond the original number of spins.

Can Free Spins Have Different RTP?

The free-spin feature forms part of the slot's overall mathematical design and therefore contributes to the game's RTP.

Some of a slot's theoretical return may come from base-game wins, while another part may come from bonus features such as free spins.

That does not mean the free-spin round itself guarantees a particular return.

Do Free Spins Affect Slot Volatility?

They can.

If a large part of a game's payout potential is concentrated inside a difficult-to-trigger free-spin feature, that can contribute to higher volatility.

For example, a slot may produce relatively small base-game wins but have much larger payout potential during its free-spin round.

That kind of structure can create larger swings in results.

What Is a Sticky Wild During Free Spins?

A sticky wild is a wild symbol that remains in place for more than one spin.

During a free-spin round, a sticky wild might stay in its position until the feature ends.

This can create more opportunities for winning combinations as additional spins are played.

What Is an Expanding Wild During Free Spins?

An expanding wild can grow to cover multiple positions or an entire reel.

Some slots use expanding wilds only during free spins, which can make the bonus feature behave differently from the normal game.

For a broader explanation of special symbols, read our guide to wild and scatter symbols.

Free Spins vs Normal Spins

Can You Buy Free Spins?

Some slots include a feature commonly called a bonus buy or feature buy.

Instead of waiting for the bonus to trigger naturally, the player pays a specified amount to enter the free-spin or bonus round directly.

Bonus-buy availability can depend on the game, provider and player's location.

We will cover this properly in the next part of this slot series.

Are More Free Spins Always Better?

Not necessarily.

The number of free spins is only one part of the bonus.

For example, a feature with 8 spins and strong multipliers could behave very differently from a feature with 20 spins and fewer additional mechanics.

The complete bonus structure matters more than the number of spins alone.

Can Free Spins Guarantee a Win?

No.

Receiving free spins does not guarantee that the feature will produce a profit or even a significant payout.

The results are still determined by the slot's game mechanics.

A free-spin round can produce a large win, a small win or very little return.

Can You Predict When Free Spins Will Trigger?

No reliable method can predict exactly when a free-spin bonus will trigger.

Seeing two scatter symbols repeatedly does not mean the third scatter is guaranteed to appear soon.

Previous results do not make the next bonus trigger “due.”

What Should You Check Before Playing a Free-Spin Slot?

Before playing, check the game's paytable or information section for:

• How many symbols are required to trigger free spins

• How many free spins are awarded

• Whether the feature can retrigger

• Whether multipliers apply

• Whether wilds behave differently during the bonus

• The game's RTP

• The game's volatility

• The maximum possible win

Frequently Asked Questions About Free Spins

What are free spins in slots?

Free spins are bonus spins awarded by a slot where the normal wager is not placed again for each individual spin.

How do you get free spins?

They are commonly triggered by landing a required number of scatter or bonus symbols, although the exact method depends on the game.

Do free spins use your original bet?

Often yes. Many games calculate free-spin payouts using the bet size that triggered the feature, but the exact rules vary between slots.

Can you win real payouts from free spins?

Yes, qualifying wins generated during the free-spin feature are added according to the rules of the slot.

Can free spins retrigger?

In some games, yes. Landing additional scatter or bonus symbols during the feature may award extra spins.

Are free spins guaranteed to be profitable?

No. Free-spin features can produce high, low or even minimal payouts.

Are free spins the same as a bonus buy?

No. Free spins are the bonus feature itself, while a bonus buy is a paid option that may allow you to enter that feature directly.

Understand the Bonus Before You Play

Free spins are one of the most common bonus features in modern online slots, but the mechanics can vary significantly from one game to another.

Some free-spin rounds are simple, while others add multipliers, sticky wilds, expanding symbols and retrigger mechanics.

Before playing, check the paytable so you understand exactly how the feature works.

For more slot basics, read our guides to wild and scatter symbols, slot multipliers, RTP and volatility.

Play responsibly and only gamble with funds you can afford to lose.