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Star Clusters

Big Time Gaming
RTP 96.54%
Play Big Time Gaming Slots
Reels 4
Paylines 0
Min bet size 0.20
Max bet size 20
RTP 96.5
Wild symbols Yes
Free spins Yes
Bonus No
Jackpot No

Star Clusters Slot Review

Released June 2020

The Star Clusters slot game can be found at casinos using Big Time Gaming software. Big Time Gaming is one of the newer software developers in the online gaming market. Alongside many of the smaller casino software providers Big Time Gaming focus exclusively on Slot Games. The company was founded by two individuals who reportedly were involved in the early days of New Tech Media that (via various sales and takeovers) ended up being part of OpenBet. Big Time Gaming publish the slots house edge information of all their games as standard. As such we can say that the House Edge of Star Clusters is 3.46%.

Star Clusters is a 4 reel slot with each reel sitting at 4 symbols high. You form wins by landing 5 or more matching symbols horizontally or vertically adjacent.

Reactions – After any win the symbols involved will disappear and will become replaced by 4 smaller symbols. Those symbols are not worth any less. The fact that they are small simply means that there are more of them, which should mean that you have more chances to form additional wins. This will increase the ways to win.

Theme – This is a standard crystal themed slot. All the symbols are crystals (expect the Wild symbol) and there isn’t really much else to mention on that front.

Special Symbols

Wild – The Wild symbol is the “Star”, which will substitute for all symbols except Gold Wilds.

Gold Wilds – The Gold Wild symbol is the “Gold Star”. This will also substitute for all symbols and it also comes with a multiplier. The multiplier begins at 1x the bet and increases by 1 for every subsequent win you form using additional Gold Wild symbols.

Bonus Features

Free Spins – If you can manage to land 5 reactions in a row then you will receive 2 Free Spins, a process that continues. Additionally, if you can get the Gold Wild multiplier up to it’s maximum point of 10x the bet you will also receive an additional 2 Free Spins.


Star Clusters is a mega clusters slot, which I think could the first of its kind in Big Time Gaming’s back catalogue. This slot is all about those reactions. If you can find yourself on a roll of reactions then the number of symbols on the reels can be quite impressive. However, get that ball rolling can be tricky. When you only have a 4x4 grid landing combinations of 5 or more matching symbols horizontally or vertically adjacent isn’t easy. This means that Star Clusters is a slot of considerable highs and lows. You can go for many spins where nothing happens but when that win finally hits you can find yourself hitting a number of reactions in a row. The house edge is offering decent value for money but and makes up for some of this slot’s other failings. Personally I don’t think there’s enough going on here for Star Clusters to warrant a glowing review.

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