Wild Boost Slot Review
A red void, cut by diagonal beams of light, with faint hexagons fading into the haze at the edges, is all the scenery Wild Boost offers, and that’s an honest summary of its priorities. The claim worth arguing is that this is one of the more generous classic builds around: Amatic has tucked a wild-driven respin loop and a fullscreen doubling rule into a format that usually ships with neither.
It runs on a 5×4 grid with 40 fixed lines, at 96.86% RTP, with stakes from 1 to 100000. Among the studio’s fruit-and-sevens line it sits closest to Double Joker 20 and Fortune Joker 20: the same taste for tall paytables, nothing ornamental in between.
Sevens, Fruit and 40 Fixed Lines
Wild Boost calls itself a 20-reel slot, which is a fancy way of saying five reels and four rows: 20 symbol positions, spanned by 40 fixed lines. Line wins pay leftmost to right on adjacent reels, and only the highest combination counts on each line. Wins from different lines are added together.
Every value in the paytable is a multiple of the line bet, and the figures shift automatically as the bet level changes. Stakes run from 1 to 100000. The WILD symbol substitutes for everything; there’s no scatter, and nothing the wild won’t stand in for.
Because the wild substitutes for every symbol without exception, it’s the most valuable single tile on the grid. A wild in the right position can complete a five-of-a-kind red 7 line as easily as a cherry pair’s third slot. That reach is what makes the feature section below worth waiting for.
The paytable itself is a fruit-machine ladder with an unusually tall top rung:
- Red 7 – three pays 750, four pays 5,000, five pays 25,000
- Green 7 – three pays 500, four pays 3,000, five pays 15,000
- Teal 7 – three pays 350, four pays 2,000, five pays 10,000
- 777 multicolour – three pays 250, four pays 1,000, five pays 2,500
- Bell – three pays 200, four pays 750, five pays 2,000
- Watermelon – three pays 200, four pays 500, five pays 1,500
- Grapes – three pays 200, four pays 400, five pays 1,250
- Plum – three pays 150, four pays 300, five pays 1,000
- Lemons – three pays 100, four pays 200, five pays 750
- Cherries – three pays 50, four pays 100, five pays 250
That red 7 paying 25,000 for five of a kind is the number that shapes the whole game. Cherries, at the bottom, pay 50 for three. The spread between top and bottom symbol is wide, and that’s where the game’s whole risk profile lives.
The mixed-sevens rule is worth a second look, because it softens the ladder’s harshness. Different SEVEN symbols landing together on a winline pay a special win of their own. Land a green 7, a teal 7 and a red 7 on the same line and you’re not walking away empty.
It works the other way too. Four adjacent sevens of mixed colours can’t be read as a losing spin when the game pays them, so the top of the ladder is easier to reach than a pure fruit machine’s would be.
The shape of the game follows from that spread. The fruit symbols pay modestly, the sevens pay heavily, and the wild decides which side of the ladder a line lands on. It’s a classic risk curve with one modern twist bolted on, and the twist is where all the interest sits.
The RESPIN Feature
Three WILD symbols anywhere on the grid start the RESPIN feature, and those wilds stay locked in place until it ends. From there the mechanic is simple and self-feeding. Every new WILD that lands is held too, and each one buys another respin.
In order, a round runs like this:
- Three WILD symbols land anywhere on the 5×4 grid and lock in place
- The first respin plays out; any wins are added to a running win sum
- Each new WILD that appears is held and awards another respin
- The feature ends when a respin brings no new WILD, or when the screen fills
Because the held wilds substitute for everything, a few early locks can turn later respins into near-guaranteed line wins across the 40 lines. All wins during the feature go into that single win sum, so nothing won along the way is at risk on the next respin.
The loop’s maths rewards patience in a specific way. Each held wild covers one of 20 positions and stands in for any symbol, so the value of every subsequent respin climbs as the locked set grows. A respin that adds nothing still keeps the win sum intact; there’s no way to lose ground mid-feature.
The fullscreen ending is the one to chase. A screen of 20 matching symbols, wilds included, doubles all line winnings for that spin. With wilds held and respins continuing, fullscreen isn’t a fantasy scenario here; it’s the feature’s designed destination, and the doubling rule is what makes it worth the wait.
There’s no buy-in, no gamble ladder, no second feature hiding behind the first. Three wilds is the only door, and everything the game has to offer sits behind it. The reels themselves keep it simple too: a GOOD LUCK! message on every spin, a stop button for the impatient, and nothing else asking for attention.
Our Honest Verdict
Overall Rating: 7.2/10
Playing Wild Boost is mostly waiting in a very handsome red room. The spins between features are standard fruit-machine fare, softened a little by the mixed-sevens special win, and the one reason to choose it over any other classic slot is the moment three wilds lock in place and the respins start.
That respin loop is the strength, and it’s a real one. Every held wild makes the next respin more likely to pay, the win sum only grows, and the fullscreen doubling rule gives the whole thing a proper destination rather than a slow fizzle.
The weakness is everything outside the loop: one feature, no scatter, no free spins, and a base paytable dressed in very nice red but built to a template. None of that matters to the right player. Wild Boost suits anyone who likes their fruit slots with a single modern tooth and no appetite for bonus wheels; anyone who wants pick games and free spin rounds will find the cupboard bare. For the first group, the glow is enough.
Wild Boost FAQs
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What is the RTP of Wild Boost?
Wild Boost runs at 96.86% RTP, which is a strong figure for a classic fruit-machine build. -
How do you trigger the RESPIN feature in Wild Boost?
Three WILD symbols landing anywhere on the grid start the RESPIN feature. The triggering wilds are held in place, and every new WILD that lands during the feature is held too and awards another respin. -
Can the RESPIN feature retrigger?
Yes, in effect. The feature doesn’t have a fixed spin count; it continues as long as each respin brings at least one new WILD symbol. It only ends when a respin produces no new WILD or the screen fills completely. -
What does a fullscreen win pay in Wild Boost?
A fullscreen win of 20 symbols of a kind, including WILD symbols, doubles all line winnings. Combined with the 25,000 five-of-a-kind red 7 pay, it’s the game’s biggest designed payout. -
Does Wild Boost have a scatter symbol?
No. There’s no scatter in Wild Boost; the WILD substitutes for every symbol, and the RESPIN feature is triggered by wilds rather than scatters. -
What do mixed SEVEN symbols pay in Wild Boost?
Different SEVEN symbols landing together on a winline pay a special win of their own, so a line holding a red 7, a green 7 and a teal 7 still pays out rather than counting for nothing. -
What is the minimum and maximum bet on Wild Boost?
Bets run from 1 to 100000, and all paytable values are multiples of the line bet that scale automatically with your chosen level. -
Who makes Wild Boost?
Wild Boost is made by Amatic, an Austrian studio with a long history in land-based cabinets. Its release date is 29 December 2022.


