Enter the Jazz Age with snazzy reels and a jazzy soundtrack in this 5 reel slot with 243 ways to win. The Booster reel delivers extra winnings with wild reels, win multipliers, and... random wilds all up for grabs. With superb Art Deco style graphics and the Booster reel ready to apply up to 3 of the 4 booster features to every spin, the game offers you the chance to win up to 8,100x your line bet.
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Boost It theme and graphics
Boost It has a unique look and feel, thanks to the Art Deco styled symbols against a jazz era backdrop. In fact, this game's an absolute stunner and more visually rewarding than a lot of slots around. It’s a very clever take on a traditional Vegas fruity, but with real visual sophistication and flair.
A New Take on a Classic Theme
STHML has completely rethought the way classic slots should look. Instead of bright and garish colours and bleeps and bloops, it’s given us a smooth and sophisticated jazz soundtrack and some really superb artwork.
The symbols on the reels are all recognisable from any 3-reeler. but here they’ve been given a polished makeover. Even the whirring of the reels and the sassy trumpet blare when the stacked wilds arrive rethink the classic stuff in a clever new way.
How to play Boost It slots
Boost It offers players a range of bets starting from 25p. Because this is a 243 ways to win slot, there are no paylines to bet on, so your stake is fixed per spin.
The extremely clean and user friendly layout of this slot makes choosing player options a breeze. Simply click on an icon to access paytable information or set your autoplay options. You can also toggle the sound on and off, but why would you want to?
When you’ve configured the game to suit your playing style, hit the central spin button to start playing.
RTP and Volatility
Boost It has a theoretical RTP of 97%, which makes it well worth playing. It is a medium volatility game.
How to Win
Unlike a 5 reel slot with a series of paylines, Boost It is a 243 ways to win slot. That means winning combinations are created when symbols land on adjacent reels rather than designated paylines on the 5x3 grid.
Boost it By Feature
Unlike either a classic Vegas slot or a 5 reel video slot, Boost It doesn’t depend on bonus features like wheels of fortune, pick and win or free spins to generate the really lucrative payouts. Instead, this slot uses the booster reel mechanism to deliver the big wins. This reel lies horizontally on top of the 5x3 grid and spins as the game reels spin, delivering up to 3 game modifiers a time.
There are 4 booster features and 2 wild symbols. The boosters are:
- Random wilds: this feature is symbolised by two crossing horizontal arrows and adds up to 3 wild symbols anywhere on reels 2 to 5. Each wild substitutes for all other symbols.
- Reel wilds: when the up and down arrow wild appears in the booster reel, look for the expanded wild symbol to land on any reel from 2 to 5. This symbol stacks 3 high and also substitutes for all other symbols.
- Symbol multipliers 5x: these will multiply winning combinations involving the chosen symbol by 5x.
- Win multipliers: a random multiplier between 2x and 10x will multiply all winning combinations on the reels.
The wild symbol is an intricate gold Art Deco design with the word Wild across the centre in silver. These appear randomly as single symbols or stacked 3 high, depending on the modifier shown on the booster reel.
Boost It Slot Review
STHML Gaming has a reputation for putting a unique spin on basic gameplay elements to create stunning slots and they’ve done it again with Boost It. The idea is simple - the booster reel at the top of the screen spins up a series of modifiers that can significantly boost your winnings. There are four to choose from and they can spin up in random combinations of 1, 2 or 3 boosters.
Fun Art Deco Theme
We love the look and feel of this slot - the backdrop is pure Chrysler building, while the symbols are lovingly rendered like a flapper’s jewels. Score a big win and fireworks worthy of a Gatsby party explode across your screen.
Add in the cool jazz soundtrack and this slot is eminently playable and incredibly enjoyable - there may be no breakout bonus features, but this slot is such a feast for the eyes and the gameplay is so exciting that you’ll want to keep spinning and winning.
| Slot Name: | Boost it |
|---|---|
| Software: | STHML Gaming |
| RTP: | 97% |
| Volatility: | Medium volatility |
| Paylines: | 243 |
| Reels: | 5 |
| Min Bet (all lines covered): | £0.25 (GBP) |
| Max Bet: | £1 (GBP) |
| Top Win: | 8100 |
| Features: | Wild Symbol, Multiplier, Expanding Wilds, Sub Symbols In Feature, Medium volatility, 5 Reels |
| Themes: | Jewels, High Life |
| Last Update: | 29/06/2026 |
Available in UK?
|
Yes. STHML Gaming have a UKGC license and are allowed to offer their games at UK licensed casinos. |
Boost it FAQs
What is the RTP of Boost It?
In Boost It, there is a top RTP of 97%.
Does Boost It slot have free spins?
No, this slot doesn’t have a free spins feature. Instead, there are game modifiers in the shape of wilds and multipliers that spin up on the separate booster reel to deliver plenty of lucrative wins.
How are wins made in Boost It?
So long as three or more matching symbols appear on adjacent reels, starting from the leftmost reel, a winning combination will be made.
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|
| Slot Name: | Boost it |
|---|---|
| Software: | STHML Gaming |
| RTP: | 97% |
| Volatility: | Medium volatility |
| Paylines: | 243 |
| Reels: | 5 |
| Min Bet (all lines covered): | £0.25 (GBP) |
| Max Bet: | £1 (GBP) |
| Top Win: | 8100 |
| Features: | Wild Symbol, Multiplier, Expanding Wilds, Sub Symbols In Feature, Medium volatility, 5 Reels |
| Themes: | Jewels, High Life |
| Last Update: | 29/06/2026 |
|
Available in UK?
|
Yes. STHML Gaming have a UKGC license and are allowed to offer their games at UK licensed casinos. |
