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Learn how cluster wins build on this 6x6 grid

Lucky 8 Merge Up™ at 11croco Casino: what you need to know

BGaming's 6x6 cluster-pays slot uses Merge Up cascades to upgrade symbols across nine levels, with 97.25% RTP and very high volatility.

Claim Bonus 18+ only. Welcome bonus up to NZ$700 at 117% match, 41x wagering, valid 38 days.
Lucky 8 Merge Up™

Cluster wins and symbol merges shape every round

Cascades build your win. Lucky 8 Merge Up is a 6 by 6 grid slot where clusters of four or more touching symbols create wins. When a cluster wins, part of it disappears and the rest upgrades to a higher symbol level, triggering a cascade. The game repeats this process until no more wins form. Released in 2024, it blends cluster mechanics with a unique upgrade system that keeps rounds moving and building.

Is this game right for your bankroll? You'll find this slot suits players ready for long dry spells and occasional large wins. The very high volatility means wins are scarce but can be substantial. It works at stakes from NZ$0.20 to NZ$50 per spin, so both smaller and larger stakers can join. The Free Spins bonus and Chance x2 bet option give you ways to chase bigger moments, though neither guarantees them.

Lucky 8 Merge Up builds on every win. Lucky 8 Merge Up pivots around Symbol Merge and Tumble. When a cluster wins, the symbols that remain don't just stay in place—they upgrade to the next level of the symbol hierarchy. This upgrade happens as part of the same cascade, so one spin can chain multiple wins together. The feature defines how rounds play and why a single spin can run much longer than you might expect.

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Lucky 8 Merge Up by the numbers

How the game works, in numbers

Every figure here shows you what to expect before you place your first bet.

BGaming

StudioBGaming
Return to player97.25%
Volatilityvery high
Grid layout6x6

NZ$250 000

Maximum winx5 000
Top win at max betNZ$250 000
Release date15/02/2024
Lucky 8 Merge Up steps

How does a round of this slot work?

The sequence of a single spin, from choosing your stake to seeing what you won.

Your stake and Chance x2
You set your bet between NZ$0.20 and NZ$50 per spin. The game can run at your chosen stake, and you can also toggle the Chance x2 feature to raise your bet by 25% for better odds of reaching the bonus round.
Clusters and upgrades on each spin
Four or more of the same tile touching orthogonally form a winning cluster. When a cluster wins, those tiles disappear and the rest upgrade to the next level up. Symbols keep upgrading as long as clusters form and fall.
When the cascade ends
After your tiles settle, any remaining cluster payouts occur. The cascade repeats until no more tiles vanish or upgrade. Then the round ends and your win is paid.
When bonus rounds start
Land four, five or six scatters and you trigger 15, 18 or 20 free spins. Scatters land anywhere on the grid and can retrigger the bonus, adding more spins.
Session limits before you start
Before your first spin, you can set session limits through 11croco Casino. These include deposit limits, loss limits and cooling-off periods to keep your play in check.
Lucky 8 Merge Up in motion

Watch the grid, spot the clusters, see the upgrade

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What you'll win

Lucky 8 Merge Up symbol payouts

At a NZ$1 bet, four matching symbols form a cluster and pay the amount shown. Larger clusters pay more.

Highest wins

Seven tileSeven tile4+ NZ$1 · 12+ NZ$50
Six tileSix tile4+ NZ$0.80 · 12+ NZ$40
Five tileFive tile4+ NZ$0.60 · 12+ NZ$30

Mid tier

Four tileFour tile4+ NZ$0.50 · 12+ NZ$25
Three tileThree tile4+ NZ$0.40 · 12+ NZ$20
Two tileTwo tile4+ NZ$0.30 · 12+ NZ$15

Unlock bigger wins with free spins and bonus modes

How do marked cells boost your wins? Land 4, 5 or 6 scatters to trigger 15, 18 or 20 free spins. During the round, winning cells get marked; when a marked cell wins again, a multiplier applies and doubles up to a cap of x128. Multiple marked cells in one cluster add their multipliers together.

Can you skip the wait and buy free spins? Pay 100 times your total bet to buy a free spins round outright. Your next spin after purchase triggers the bonus instantly. You cannot use Buy Bonus while Chance x2 is active.

Boost your chances with Chance x2. Toggle this permanent feature on to raise your total bet by 25 percent, giving you better odds of landing scatters naturally. It stays active across spins until you switch it off. Buy Bonus is locked while Chance x2 runs.

How winning clusters change the grid. The 6x6 grid uses cluster pays: groups of 4 or more same-level symbols touching orthogonally trigger wins. When a cluster wins, part of it vanishes and the rest upgrades to the next level, then cascades until no new wins form.

When bonus rounds arrive is not set in stone

Lucky 8 Merge Up bonus timing stays unknown. A bonus round can arrive on your next spin or take much longer to trigger. No pattern controls when scatters land, so you cannot plan a session around landing free spins.

Why does one session differ so much from the RTP? Your session result depends on what tiles appear and where, not on the RTP. The 97.25% RTP describes long-term results across all players, not your individual session outcome.

Maximum win and what you actually see. The maximum win of NZ$250,000 at the top bet is a ceiling you may never reach. Extremely high volatility means most sessions sit far below that peak.

Boost your odds or skip ahead

Speed up your game or improve your chances

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18+Two ways to spend more: lock in a bonus round or lift your odds of triggering free spins.
NZ$1 000 (x100)

Buy Bonus feature

Pay NZ$1 000 at your NZ$10 bet to jump straight into free spins on the next spin. This purchase costs 100 times your total bet and skips the base game entirely.

NZ$10 → NZ$12.50

Chance x2 ante bet

Toggle Chance x2 before you spin to raise your bet by 25 percent, taking it to NZ$12.50 at your NZ$10 stake. This lifts your odds of naturally triggering free spins but cannot run at the same time as Buy Bonus.

Try before you stake

Test the slot risk-free before you commit

Know exactly what you're playing before your first real money spin

Spin without stakes
You spin the grid without staking. Cascades, multipliers and free spins work the same way as the paid game, so you learn how clusters form and how symbols upgrade. Winnings don't go to your account.
Play demo
Real stakes, real winnings
You spin the grid with your chosen bet, from NZ$0.20 to NZ$50. Every win moves to your balance. You can toggle Chance x2 to boost your odds of triggering the bonus, or buy free spins outright.
Play for real
When you want variety

Other games from the same provider

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3 RTP figures explained

Average return per 100 staked across play modes

RTP is a long-run average calculated over a very large number of spins. Each of the three RTP figures below applies only to the condition shown: the standard game, when you activate Chance x2, or when you purchase the bonus.

RTP 97.25% · Standard game, Chance x2 active, or bonus bought

Average payoutNZ$97.25
House edge per 100NZ$2.75
Lucky 8 Merge Up asked

What every player should know before betting

You've found the slot and want to know what happens when you play.

Where do free spins come in Lucky 8 Merge Up?+
Free spins trigger when four or more scatter symbols land on the grid. Four scatters award 15 spins, five award 18, and six or more award 20. If scatters land during your free spins, you gain extra spins: four add 5, five add 8, and six or more add 10.
What if you want to bet higher or lower on Lucky 8 Merge Up?+
You can bet from NZ$0.20 to NZ$50 per spin. The game accepts stakes like NZ$1, NZ$2, and NZ$10, so you can find a level that suits your budget. Your bet size scales all payouts up or down.
When could you win the biggest prize in Lucky 8 Merge Up?+
The maximum win is 5,000 times your stake. At the highest bet of NZ$50, that means a win of NZ$250,000. Even at a lower example bet of NZ$10, the top prize reaches NZ$50,000.
What happens when you play Lucky 8 Merge Up in demo mode?+
Demo mode lets you spin the same 6x6 grid and trigger the same features without using real money. You won't collect winnings in demo, but you'll see exactly how clusters form, how cascades work, and when free spins start.
When you play Lucky 8 Merge Up, what RTP applies to your bets?+
The standard game pays back 97.25% over time. If you activate Chance x2, which raises your bet by 25%, the return stays at 97.25%. When you buy the bonus for 100 times your bet, that bonus round also returns 97.25%.

Keep your play within bounds

What's your session budget? Decide what you can afford to lose on Lucky 8 Merge Up in each session. Set your budget before you log in, then stick to it when cascades start flowing.

When will you walk away? Plan when you'll stop playing, whether you're ahead or behind. A big win can tempt you to keep spinning, but your stopping point matters more than any cascade.

Set account limits now. Use your account's deposit and loss limits to keep your spending on track. These tools enforce the boundaries you set, so they work even when the game gets exciting.

When the game isn't fun. If the game stops being fun or you feel pressure to chase losses, take a break. Use cooling-off periods or self-exclusion when you need space from gambling.

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