Blobsters Clusterbuster

by Red Tiger Gaming

Join the loveable group of Blobsters as they attempt to take over the galaxy. Whilst the creatures are trying to take over the world, you can't help but love them as they are absolutely adorable in Blobsters Clusterbuster.

Playing on a grid of 9x9, this space slot has three modifiers and a bonus round. With the modifiers, you can upgrade symbols and add in extra wilds. Everything in this slot is a result of the amazing Clusterbuster mechanic that can be found throughout. If you love space slots with exciting features, this is the slot for you.

Slot information

RTP: 95.70%
Volatility: Medium
Max Payout: 7,500x stake
Reels: 9x9
Jackpot: No
Min Bet: 0.10
Max Bet: 10.00
Category: Grid slots
Theme: Space
Release Date: 16th Feb 2023

Our rating

“ A must-play for fans of grid slots ”

3.9 out of 5

Win potential

Play Blobsters Clusterbuster

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Blobsters Clusterbuster Screenshots

Blobsters Clusterbuster Features

There are three modifiers throughout this slot but they are locked at first. In order to unlock the features, you'll need to turn the UFO green in the middle. This can be done by landing winning clusters around the middle symbol.

The tiles around the middle symbol are locked until wins are made around it. The prize will be revealed inside leading to one of the modifiers being unlocked. This is called Clusterbuster. Once these modifiers are unlocked, they can randomly appear on any spin leading to some amazing wins.

The three modifiers include:

When all of the modifiers have been unlocked, the Invader Spins can be triggered. You need to activate all 8 lights on the UFO by landing wins around the middle.

During the free spins, modifiers are active and can occur more frequently. The UFO can be lit up three times during free spins leading to extra spins and multipliers of up to x12.

Blobsters Clusterbuster - Upgrader


When you unlock the Clusterbuster in the middle of the screen by landing wins, you can gain one of three modifiers. The first is Upgrader which upgrades lower-paying symbols.

Blobsters Clusterbuster - Frenzy


The second modifier is Frenzy. When this is triggered, between 5 to 20 ordinary symbols are transformed into wilds leading to even bigger wins.

Blobsters Clusterbuster - Supersize


Once the final modifier is unlocked, you'll gain Supersize. This modifier selects 2 to 4 random high-paying symbols and transforms them into bigger 3x3 symbols.

Blobsters Clusterbuster - Invader Spins

Invader Spins

When all of the modifiers have been unlocked, the Clusterbuster mechanic will unlock the Invader Spins next. Up to 19 free spins can be triggered as well as global multipliers.

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Blobsters Clusterbuster Review

Red Tiger Gaming has been experimenting with mechanics for a while. It seems that the slot developer has found some success with the Clusterbuster mechanic as Blobsters Clusterbuster is the third one so far.

This slot follows Dragons Clusterbuster and Good Luck Clusterbuster which were modest successes. The main difference between those slots and Blobsters Clusterbuster is the addition of more modifiers.

Playing on a grid of 9x9, Blobsters Clusterbuster follows a group of alien creatures trying to invade Earth. However, these creatures are adorable and come with amazing features! With captivating gameplay and an amazing design, Blobster Clusterbuster could be the best Clusterbuster slot yet!


As the slot opens, you'll notice the background image is of the galaxy. There are various animated stars, constellations and planets which all look incredible. You'll definitely be blown away by the beauty of the background.

However, the star of the slot is easily the alien in the middle of the screen who goes by Blobby. This creature is blue and is in a cute little spaceship. The presentation feels close to Reactoonz but this slot manages to do the space theme more tastefully.

The audio is exactly what you'd expect with synth sounds matching with typical sci-fi noises such as lasers shooting. It's nothing we've not heard before but it works well with Blobsters Clusterbuster.


Whilst the name Clusterbuster may seem quite overwhelming, it's relatively straightforward once you figure it out. All you need to know is that the middle section around the UFO is locked until wins are made up around it.

After you unlock the Clusterbuster for the first time, you'll unlock a modifier. When all the modifiers have been unlocked, then you can trigger the bonus. The only downside is that it may take a while to unlock the middle but it's definitely worth the wait.

Win Potential

The overall win potential of this slot is pretty decent for a Red Tiger Gaming slot. You'll find that the RTP is at 95.70% followed by a medium volatility level. Whilst 95.70% is not as high as we'd like, we've come to expect this amount with Red Tiger Gaming slots.

As for maximum wins, you can gain up to 7,500x the stake during the slot with the modifiers and free spins. Some versions of this slot contain the Red Tiger Jackpot leading to bigger wins - but check with your chosen slot site beforehand.

Our Verdict

The Clusterbuster mechanic is easy to follow but can lead to hours of entertainment. We found ourselves fully immersed in the slot and absolutely loved our experience.

The standard version of the game offers gameplay for every type of player, whilst jackpot hunters will be able to enjoy the jackpot version as well. Some players may be put off by the wait of having to unlock features but we found that it just added to the excitement for us. Blobsters Clusterbuster is a simple but captivating slot full of exciting moments.

Charlie Vogelsang
Reviewed by Charlie Vogelsang Last updated on

As the Content Manager at Slot Gods, Charlie is focused on staying on top of the latest slot releases as well as finding the most recent trends. She spends her day searching for the best slots to be reviewed as well as managing most of the content that you will find on the site. Whether it’s the latest slot review from Relax Gaming or a guide on a brand-new mechanic, Charlie will be sure to have it covered on Slot Gods.

Learn more about Charlie here

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