Featured Features
All Slot Features
Three Features in Detail
Megaways Spotlight
Big Time Gaming created Megaways and licenses it to other studios. The number of symbols on each reel changes every spin, so the count of ways to win changes too, up to 117,649 on six reels of seven symbols. The RTP depends on the game and on the version a casino runs.
| Slot | Provider | RTP |
|---|---|---|
| Bonanza Megaways | Big Time Gaming | 96% |
| Extra Chilli Megaways | Big Time Gaming | 96.82% |
| White Rabbit Megaways | Big Time Gaming | 97.24% |
| The Dog House Megaways | Pragmatic Play | 96.55% |
Hold and Win Spotlight
When enough cash or coin symbols land, they lock in place and three respins start. Each new cash symbol that lands locks too and resets the count to three; when the respins run out, the locked values are added up and paid. Pragmatic Play's Wolf Gold is one example.
| Slot | Provider | RTP |
|---|---|---|
| Wolf Gold | Pragmatic Play | 96.01% |
| Money Train 4 | Relax Gaming | 96.1% |
Book of Mechanic Spotlight
Three or more Book scatters start the free spins, and one symbol is picked at random as the expanding symbol: when enough of it lands to pay, it fills its whole reel. Novomatic's Book of Ra set the pattern, and Play'n GO's Book of Dead followed in 2016.
| Slot | Provider | RTP |
|---|---|---|
| Book of Dead | Play'n GO | 96.21% |
| Legacy of Dead | Play'n GO | 96.58% |
| John Hunter and the Book of Tut | Pragmatic Play | 96.5% |
| Book of 99 | Relax Gaming | 99% |
How Features Affect RTP and Payouts in UK Slots
Many slots ship in more than one RTP version and the casino chooses which one it runs, so the same Megaways game can return less at one casino than at another. The game's help panel shows the version that applies.
Progressive jackpot slots usually have a lower base-game RTP, because part of each stake feeds the jackpot. See Progressive Jackpot slots.
Volatility describes how wins are spread: low-volatility slots pay smaller amounts more often, while high-volatility slots pay less often and hold more of their value for the bonus round. Each review lists the slot's volatility where the studio rates it.
Feature Buy in the UK — What Changes for Real-Money Play
Bonus Buy, or Feature Buy, means paying a set price, a multiple of the stake, to go straight into the bonus round. Casinos licensed in Great Britain have not offered it since the Gambling Commission's notice of January 2020.
Some slots offer an Ante Bet instead: a higher stake per spin for a better chance of triggering the bonus. Pragmatic Play's Sweet Bonanza is one example.
At GB-licensed casinos these games run without the buy option, so the base-game RTP and volatility on each review are the figures that apply. See Bonus Buy slots for the list.
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Editor
Polina edits every slot review and theme guide on SlotRover, from how each game plays to its RTP, reels and bonus features. Polina comes to SlotRover from the gambling industry.