Cluster Gems
Playing for real
Deposit

You're not logged in

Log in or sign up to play the game

game review avatarReel McCoy

Cluster Gems Slot Review

Gemstones 💎 have been fooling people for centuries. In the 1800s, con artists used to sell "Arkansas diamonds" to travelers passing through Hot Springs. They were just quartz crystals, polished up and sold for outrageous prices to gullible tourists who thought they'd struck it rich.

The scam worked because quartz looks shiny and valuable if you don't know what you're looking at. People handed over real money 💸 for fake gems, convinced they were walking away with a fortune.

Some of those "diamonds" are probably still sitting in dusty attic boxes 📦 somewhere, waiting for someone to realize they're worthless.

Let’s take a look at Cluster Gems slot from Zillion.

Gameplay

The setting is an anime kingdom with a purple-haired princess hovering on the left, while castles peaking out among thick clouds in the background. A massive 8-reel, 8-row grid, packed with colorful gemstones, looks eager to deliver.

High-paying symbols are framed in ornate gold borders: a Blue Diamond, a Green Moon, a Red Heart, and an Orange Cat. Low-paying symbols are simple cut gems: Blue, Green, Pink, and Orange. The Wild substitutes for all symbols except the Scatter.

The game uses Cluster PaysUnlike traditional paylines, Cluster Pays can award wins when a minimum number of matching symbols land adjacent to each other (vertically or horizontally), forming a cluster. mechanics, requiring at least 5 identical symbols to form a winning cluster. A win triggers a cascade, boosting your chances of increasing a win even more.

Other game stats are: a 95.05% RTPRTP stands for “Return to Player.” The RTP describes the total bet amount that a game returns to players over millions of spins, and that figure is represented by a percentage. Table games, such as Roulette, typically have higher RTPs than many slots.

RTP needs to be considered in conjunction with a game’s volatility rate.
, medium volatility, a 3,000x max multiplier, and a $210,600 max win. This game accepts all currencies.

Features

STAR BOMB

The Star Bomb can trigger randomly during the base game. When activated, the Star symbol destroys all symbols in a cross pattern from where it lands to the edges of the grid.

This clears symbols without awarding wins, then activates a re-spin and increases the multiplier for the next spin.

Cluster Gems Slot - 1 - BitStarz Casino

RE-SPIN MULTIPLIER

The multiplier interface above the grid shows your possible multipliers: 2x, 4x, 8x, and 10x. Only one multiplier is active at a time and is applied to all wins on that spin.

After each cascade triggered by the Star Bomb, the multiplier increases step by step until the highest multiplier is reached.

FREE SPINS

Landing 5 Scatters triggers 10 Free Spins, and you can re-trigger the feature by landing 5 more Scatters.

Free Spins use the same cluster mechanics as the base game, with cascades and multiplier progression active throughout the round.

Cluster Gems Slot - 2 - BitStarz Casino

Performance

The game was lagging quite a bit, but I’m not sure if it was on the provider’s end or my own Wi-Fi connection.

Max Win

Players can bet anywhere from $0.24 to $70.20. To claim the $210,600 max win, you'll need to land the 3,000x max multiplier on a $70.20 bet.

Conclusion

Cluster Gems slot funnels all its money through cascading clusters and escalating multipliers. The bigger wins come when the Star Bomb clears the grid and pushes the multiplier higher. Without the Star Bomb firing, wins stay modest.

Free Spins follow the same mechanics but give you more spins to work with. The key is landing clusters early in the round and stacking the multiplier before the feature ends. If the round starts slowly or the Star Bomb doesn't activate, the feature fizzles.

Low-risk players betting small will find the cluster system steady enough for extended sessions, but the multiplier progression happens less often at low stakes. You're grinding for clusters and hoping the Star Bomb shows up before your balance drains.

Balanced players should focus on medium bets and ride out the variance. The game rewards patience, and when the Star Bomb fires during a hot streak, the multiplier stacks fast enough to recover losses and build momentum.

High-stakes players chasing the 3,000x max need perfect sequences: multiple Star Bomb triggers in quick succession, clusters forming during every respin, and the 10x multiplier applying to large cluster wins in Free Spins. Anything less, and the max win stays out of reach.

Slot Details

Game Provider: Zillion
Game Type: Video Slots
PaylinesPaylines are preset lines that run across the reels, and when you land matching symbols on them, that will result in a payout. The more paylines, the more ways you can win, but also the higher your bet per spin.: Cluster PaysUnlike traditional paylines, Cluster Pays can award wins when a minimum number of matching symbols land adjacent to each other (vertically or horizontally), forming a cluster.
RTPRTP stands for “Return to Player.” The RTP describes the total bet amount that a game returns to players over millions of spins, and that figure is represented by a percentage. Table games, such as Roulette, typically have higher RTPs than many slots.

RTP needs to be considered in conjunction with a game’s volatility rate.
: 95.05%
Volatility RateSlot games can have low, medium, high, or extremely high volatility rates (or a combination thereof).

The less volatile the game, the more often it should pay out, but the lower the amount, the less the payout, as this is in keeping with the risk you’re taking. Volatility rate should be considered in conjunction with a game’s RTP.
: Medium
Bonus Round: Yes
Progressive: No
Free Rounds: Free Spins, Re-spins
Max Multiplier: 3,000x
Max Win: $210,600
Published by
BitStarz, award-winning Bitcoin Casino

Show more
Platipus
Wild Spin
Booming Games
Buffalo Hold and Win Extreme
Booming Games
Inferno Fortune Power Hit
Platipus
Wild Spin Deluxe
BGaming
Elvis Frog in Vegas
BGaming
Gemhalla
BGaming
Aztec Magic Deluxe
Booming Games
Diamond Riches
BGaming
Exclusive
Gold Rush Frog
Platipus
Dragon's Element
Platipus
Piggy Inferno
BGaming
Alchemy Academy
Booming Games
Mr. Oinksters Hold and Win
Booming Games
Wild Diamond 7x
Belatra
Beauty and the Beast
Originals
Original
Gold Luck - Fate of Olympus
BGaming
Exclusive
Bitstarz Billion
BGaming
Open It!
Booming Games
Cash Pig 2
Booming Games
Buffalo Hold and Win Extreme 10,000
Originals
OriginalNew
Vikings and Hogs Christmas
Originals
Original
Gold Luck - Sizzling Sevens
Platipus
Exclusive
bitStarz Element
Gamebeat
Buffalo Trail
Originals
Original
Vikings Riches
Originals
Original
Gold Lock - Vikings & Hogs
1spin4win
Hold The Gold
Betsoft Gaming
3 Pots of Lunar Wolf – Hold & Win
Betsoft Gaming
Gold Nugget Rush - Hold & Win
AvatarUX
3 Power Genies
Belatra
The Moneymania
Originals
Original
Great Catsby
Originals
Original
Gold Luck - Coins of Cleo
Betsoft Gaming
The Tipsy Tourist: Christmas Vacation - Hold & Win
Betsoft Gaming
Coins of Alkemor: Extreme Magic - Hold & Win
Platipus
Eve of Gifts
Platipus
3 Numbers
Belatra
New
Big Wild Buffalo 2
Betsoft Gaming
New
Greedy Goblins That Stole Christmas - Hold & Win
Belatra
Long Neck Fortune
Betsoft Gaming
Disco Farm - Hold & Win
1spin4win
Wolf Spins 243
Onlyplay
Pyramid Coins
Nucleus Gaming
Buffalo Coin Rush - Hold & Win
1spin4win
New
Xmas Lucky Time Hold And Win
Claw buster
Exclusive
Starz of Olympus
1spin4win
Mega Diamonds Luck
Belatra
Xing Fu Panda
1spin4win
Retro Mega Fruits
Popiplay
Blazing Coins Hold and Win
1spin4win
Gold and Luck
Zillion
Cyber Dragon
Belatra
Master of Xmas
Onlyplay
3 Hell Pots
1spin4win
Mystical Luck Hold And Win
Gamebeat
Raging Lion
Endorphina
Hell Hot 100
Belatra
Monkey Jackpot
Betsoft Gaming
Return to the Copa - Hold & Win