Slot free spins features
Six of our seven slots have a free spins feature. They differ in almost every detail.
By Ryan Jessop. Last checked .
Key takeaways
- Triggered by three or four scatters.
- From 10 to 25 spins.
- Each adds an enhancement.
- Played at the triggering stake.
Short answer: A free spins feature gives a set of spins at no cost, at the stake that triggered it, with something added such as a multiplier or collecting symbol.
Six features compared
| Slot | Trigger | Spins | Adds |
|---|---|---|---|
| Big Bass Bonanza | 3, 4 or 5 scatters | 10, 15 or 20 | Collecting fisherman; multiplier ladder |
| Gates of Olympus | 4+ scatters | 15 | Cumulative multiplier |
| Book of Dead | 3+ Books | 10 | Expanding symbol |
| Sweet Bonanza | 4+ scatters | 10 | Multiplier bombs |
| Fishin' Frenzy | 3, 4 or 5 scatters | 10, 15 or 20 | Collecting fisherman |
| Fluffy Favourites | 3, 4 or 5 elephants | 15, 20 or 25 | Wins tripled |
Three families
Collect
Most rounds pay something. Cash collect.
Multiplier
Results depend on the size of the multipliers. Multipliers.
Expanding symbol
All or little. Expanding symbols.
Played at your stake
Trigger a feature on a 20p spin and each free spin is worth 20p. The triggering stake sets the scale of everything that follows.
Not the same as free spins offers
Casinos also give free spins as promotions: fixed at 10p, on named slots, with terms. See slot bonuses.
More guides: Wilds and scatters explained, Paylines and ways to win and Online slot myths.
Retriggers
Landing more scatters during free spins can add spins. Big Bass Bonanza does it through its fisherman count, Sweet Bonanza adds five for three scatters, and Fluffy Favourites and Book of Dead can award the full set again. Retriggers are a large part of why a few features pay far more than the rest.
What to expect
Most features return a modest multiple of the stake. A minority return very little. A few return a lot, and those few account for a large share of the slot's overall RTP. Judge a feature slot over many triggers, not one.
Slot figures are developers' published defaults, each confirmed against two sources; a casino may run a lower RTP. Offer terms dated 5 October 2026. How we check. 18+. Free help: 0808 8020 133 or safer gambling.
Frequently asked questions
What are free spins in a slot?
A feature giving spins at no cost, usually with an enhancement.
How do I trigger them?
Usually three or four scatters.
Which slot gives the most?
Fluffy Favourites, up to 25.
Can I buy them?
Not in the UK.