Big Bonus

Big Bonus Slot Review

The reels float in a deep green glow that brightens towards the top, scattered with fine white specks like distant stars, the whole panel rimmed in thin gold over dark navy. Crowns, sevens and cherries spin inside it, far plainer than the frame they sit in. That mismatch is the game’s character: almost everything worth having sits at the very top of a steep paytable, and the one round that breaks the pattern is the whole point of the name.

It’s an Inspired build, running a 6×4 grid with 50 win lines and an RTP of 95.68%, sitting alongside the studio’s Bonus Fruits and Reel King Megaways in a taste for classic symbols with modern polish. The one real draw is a free spins round that keeps going until a 25x win lands.

The Base Game

Wins need three, four, five or six matching symbols on adjacent reels, starting from the leftmost reel, on one of the 50 win lines. Wins on different lines are added together, and only the highest award pays per winning combination. It’s a straightforward left-to-right set-up with no unusual mechanics hiding in it.

Every spin plays all 50 lines, so there’s no choosing your coverage or adjusting the ways. Line 48 paying 0.10 on a winning spin is a fair picture of how the small end of the paytable behaves: lots of lines in play, most of them worth very little when they connect.

The paytable is a classic ladder, and a steep one. The values below are per symbol run, in credits at the base bet:

• WILD: 1.00 for three, 4.00 for four, 15.00 for five, 250.00 for six
• Crown: 0.50 for three, 2.00 for four, 6.00 for five, 20.00 for six
• Red 7: 0.50 for three, 2.00 for four, 5.00 for five, 15.00 for six
• White 7 / Blue 7: 0.40 for three, 1.50 for four, 4.00 for five, 10.00 for six
• Plum / Watermelon: 0.20 for three, 1.00 for four, 3.00 for five, 8.00 for six
• Cherries / Lemon / Orange / Grapes: 0.10 for three, 0.50 for four, 2.00 for five, 5.00 for six

The WILD is the top payer in the game, standing above the Crown, and it substitutes for every symbol as the highest-paying one in the paytable. Six of them across the reels is worth 250.00 at the base bet, which dwarfs everything else on the board.

That gap between the wild and the rest is the paytable’s defining feature. Six crowns pay 20.00, a twentieth of what six wilds return, and the fruit symbols trail off down to 0.10 for three. Most spins that pay anything pay from the bottom of that ladder.

The sevens and the Crown are where the mid-tier interest sits, and it’s thin. Four of a kind anywhere on the premium end returns between 1.50 and 2.00, which on a 50-line game rarely adds up to much. Six-of-a-kind wins are where the paytable changes character, but the wild is the only symbol that makes them genuinely worth chasing.

Wilds land stacked, and a full stack on a middle reel can put the same substitution into several lines at once. That’s the base game’s one moment of drama: a stacked wild reel turning a nothing spin into a sweep of small line wins, all added together under the highest-combination rule.

Free Spins Until 25x

The round that gives the game its name is triggered by the BONUS star symbol landing on the reels. It’s the one break from the standard left-to-right paying rules: the Bonus symbol pays its own way rather than forming line wins like the rest.

Once it’s running, the round has a distinctive shape. The essentials, in the order they matter:

• Trigger: the BONUS star symbol landing on the reels
• Format: no fixed spin count, the round simply keeps awarding spins
• Finish line: the round ends when a single win worth 25x the bet lands
• Counter: a running total tracks how many free spins have been played
• Wilds: remain in play throughout the round

The 25x target is the whole design. A round that runs short can finish in a handful of spins; one that runs long keeps grinding until the target arrives, and every spin in between is free. There’s no waiting out a fixed count of six or eight spins hoping the big one lands inside it, because the big one is the exit condition.

Wilds stay in play during the round, which is where its real potential sits. With multiple wilds stacked on the reels, the 25x target can be met in a single hit rather than ground out through small line wins, and the wild’s own six-symbol payout would clear it many times over.

A running total win display keeps score through the round, so the gap between where you stand and the 25x finish line is always visible. A sample round in the demo played out over six spins on its way to a total win of 15.60 at the base bet, with multiple wilds on the reels throughout. Small numbers, but the shape is the point: the counter climbing, the target holding still.

Our Honest Verdict

Overall Rating: 7.1/10

Big Bonus plays like a classic fruit slot that’s nearly all build-up: long stretches of small line wins from the bottom of a steep ladder, with stacked wilds and the star symbol as the only things that move the needle. The reason to sit down at this green-and-gold cabinet is the round it’s named for.

That round is the game’s real strength, because a free spins feature with no fixed count gives every spin a job. The 25x finish line turns the bonus into a chase instead of a countdown, and with wilds staying in play, the target can arrive in one swing rather than a drip-feed.

The weakness is everything around it. The paytable falls away so sharply below the wild that most wins barely register, so the stretches between bonuses are thin, grinding going. This is one for players who love the old symbols and want a single modern idea done properly, not for anyone after layered features or jackpots. For fruit machine fans, the glow on this one hides a genuinely good round.

Big Bonus FAQs

• What is the RTP of Big Bonus?

  Big Bonus runs at an RTP of 95.68%.
• What is the grid size of Big Bonus?

  Big Bonus uses a 6×4 grid, with six reels and four rows of symbols. Wins pay left to right across adjacent reels starting from the leftmost reel.
• Who makes Big Bonus?

  Big Bonus is developed by Inspired, the studio behind titles like Bonus Fruits and Reel King Megaways.
• When was Big Bonus released?

  Big Bonus was released on 10 August 2020.
• How do you trigger the free spins in Big Bonus?

  The free spins round is triggered by the BONUS star symbol landing on the reels. Unlike the regular paying symbols, the Bonus symbol doesn’t need to form a standard left-to-right line win.
• How does the free spins round work?

  The free spins round doesn’t have a fixed spin count. Instead, it keeps awarding free spins until a win worth 25x your bet lands, with a counter tracking how many spins have been played along the way.
• What is the most valuable symbol in Big Bonus?

  The WILD symbol is the top payer, worth 250.00 for six across a win line at the base bet. It also substitutes for every other symbol as the highest-paying symbol in the paytable.
• Do you choose how many win lines to play in Big Bonus?

  No. Every game is played with all 50 win lines, and wins can occur across any or all of them, so there’s no option to reduce the number of lines in play.