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Guide · Slots
Every free spin in our list is tied to one game. Here's how those games behave.
Free spins are never "any game you like". They're locked to a named slot at a fixed stake, and that choice shapes how the offer feels. A hundred spins on a game that pays in rare bursts is a different evening from a hundred spins on one that drips small wins. So it's worth knowing the game before you use them.
RTP, or return to player, is the share of all money staked that a game is designed to pay back over millions of spins. It's published in each game's help screen. It is not a promise about your session; over a hundred spins, anything can happen. We don't quote RTP figures here because the same title can be offered at different settings, so the in-game help file is the only reliable source for the version you're playing.
Volatility describes the shape of the returns. Low-volatility games pay small amounts often. High-volatility games can go quiet for a long stretch, then pay more in one go. Neither is better. But high volatility and a short spin allowance can easily mean the spins return nothing at all.
Play'n GO · 5 reels, 10 lines
An explorer in an Egyptian tomb, and one of the most widely offered free-spin games in the UK. The feature is a round of free spins where one symbol is chosen at random to expand and cover whole reels. When that lands with a high-paying symbol, results can be striking. When it doesn't, the round can be modest. It's generally considered a high-volatility game.
Spins at Swift (100), Luna (50) and PlayKasino (200), all at 10p.
Pragmatic Play with Reel Kingdom
A cheerful fishing theme with a free spins feature at its core. Fish symbols carry cash values, and a fisherman wild collects them. The more fishermen you land, the more the round builds. It has spawned a long family of sequels, so check you're opening the right version when you use the spins.
20 spins at The Online Casino.
NetEnt · 5 reels, 10 lines
A simple, long-running classic. Lines pay left to right and right to left, and expanding wilds on the middle reels hold in place while the reels respin. There's no separate bonus round. That gives it a steadier, lower-volatility character than Book of Dead.
Part of the spins at Vegas Mobile Casino.
Playtech
Set on the North American plains, with wins counted by ways across the reels rather than fixed lines. The free spins feature can retrigger. Luna also lists a later instalment, Buffalo Blitz III, in its lobby.
Part of the spins at Vegas Mobile Casino.
Beyond the free-spin games, each operator highlights a handful of titles. We've grouped them here so you can see where a favourite lives. We list only what the operators themselves name.
| Casino | Titles highlighted |
|---|---|
| Swift Casino | Book of Dead, Legacy of Dead, Crazy Time, Fire Joker, Sugar Rush 1000 |
| The Online Casino | Fluffy Favourites, Live Roulette, Solar Queen, The Sweetest: Cash Collect |
| Vegas Mobile Casino | Rainbow Riches, Fluffy Favourites, Raging Rhino, Cleo's Wish, Buffalo Blitz |
| Luna Casino | Book of Dead, Big Bass Bonanza, Big Bass Splash, Money Train 5, Buffalo Blitz III |
| PlayKasino | Book of Dead, Big Bass Bonanza 1000, Crazy Time, Floating Dragon, Legacy of Dead |
Since 2025, online slots in Great Britain have a maximum stake per spin: £5 if you're 25 or over, and £2 if you're aged 18 to 24. That applies across every licensed site, whatever the game.
Bonuses add their own ceiling on top. At Swift, Luna and PlayKasino, the maximum bet while a bonus is active is 10% of your bonus and spin winnings, or £5, whichever is lower. With £7 of spin winnings and no other bonus, that's 70p a spin. Bet above the cap and the operator can remove the bonus.
Whatever your free spins return is usually credited as bonus money, not cash. It then has to be wagered before withdrawal. Here's how each casino treats it:
Seven days goes quickly. If you won't have time to play that week, it may be better to hold off claiming.
Slots are built so that, over time, the house keeps a share of what's staked. Free spins give you some play on the house. They don't change that maths. Enjoy the game for what it is, and if you notice yourself chasing a feature that won't land, that's a good moment to stop. Our play safe page has the tools and numbers worth keeping handy.