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Blobsters Clusterbuster: Slot Overview
Just for the lols, to kick the review off, we whacked the term "blobster" into Google to see what would happen. Surprisingly, a few things came up, one being a video game called Blobster from a Swedish studio by the name of Divine Robot. The game is over a decade old, so it remains to be seen whether anyone from Divine Robot will respond to casino game maker Red Tiger using a similar word in Blobsters Clusterbuster, the developer's third slot in its Clusterbuster line-up. Strange things happen in the world of slots, though, so let's wait and see on that. In the meantime, if you're interested in busting some clusters, come check out how it's done around here.
As mentioned, Blobsters Clusterbuster is Red Tiger's third one of these games, following on from Dragons Clusterbuster, which is a quite self-explanatory title, and Good Luck Clusterbuster, which was a leprechaun-themed version. Just going off the name, Blobsters Clusterbuster is the least clear-cut of them all so far. To clarify, this one has a galactic theme full of cute, eyebally, blobby aliens. It's also a cluster-paying grid slot, so there are one or two Reactoonz connotations going on. The gaming is very different, however; for one, it is played on a large 9x9 grid, with a 3x3 chunk in the centre known as the Clusterbuster, or the UFO, more on this shortly. The background visuals consist of a swirling scene of planets, gas, and stars, the universe's cosmic dance on display while players attempt to hit winning clusters.

This can be done on any type of device and by picking a preferred stake of 10 p/c to $/€10 per spin. Hitting the go button fills the grid with symbols where the goal is to land at least five of the same kind of symbol adjacent to each other vertically or horizontally to create a winning cluster. Winning clusters disappear from the board, so symbols can fall down from above, potentially leading to consecutive wins on the same spin. This process feeds into a maximum theoretical return value of 95.7%.
Characters and card royals make up the paying symbols in Blobsters Clusterbuster. More specifically, J-A are the lows, while blue, green, red, and yellow aliens are the premium symbols. Linking five of them into a cluster pays 0.1 to 1.5 times the bet, while a 35+ cluster is worth 20 to 250 times the bet.
Blobsters Clusterbuster: Slot Features

Blobsters Clusterbuster's three modifier extras are locked when the game begins, meaning they need to be unlocked before they are able to trigger. When a winning cluster hits next to the 3x3 UFO in the middle of the screen, the adjacent lights turn green. When all lights on the UFO turn green, a feature is unlocked.
When a feature is unlocked, Blobby, the chap sitting in the UFO, activates it on the next spin. All lights are switched off, ready to be activated again on future spins at the same stake. When features are unlocked, they can randomly trigger on future spins, and more than one may activate on the same spin when more than one is unlocked. At random, if all but one light is turned to green, Blobby may rage out and switch on the final light for you. The order and effect of the three modifiers are:
- Upgrader – Blobby shoots random low-pay symbols which are not part of clusters, upgrading them to random high-pay symbols. There can be 8-24 symbol upgrades in the normal game or 11-31 in Invader Spins.
- Frenzy – Blobby shoots 5 to 20 symbols on the screen, transforming them into wilds. Wilds substitute for all paying symbols.
- Supersize – Blobby shoots 2-4 random high-pay symbols, growing them to 3x3 Super Symbols. Super Symbols count as 9 regular-sized symbols.
Invader Spins
After all three modifiers have been unlocked, from then on, whenever all 8 lights are activated on the UFO, 10 free Invader Spins are awarded. During free spins, modifiers are activated at an increased rate. Blobby's UFO can be activated up to three times during free spins, too, when all lights are switched on. Each activation awards an additional +3 free spins. Also, the first, second, and third activation add a global multiplier of x3, x7, and x12, respectively, to the round.

Blobsters Clusterbuster: Slot Verdict
Red Tiger must have hit upon a method which appeals to a good number of cluster pay/grid slot fans to motivate the studio to move the Clusterbuster series along to a number three. Of the previous two, Blobsters Clusterbuster has a lot more in common with Dragons Clusterbuster than Good Luck Clusterbuster. The middle leprechaun one had those unusual four wilds that were locked in the base game, then roamed about with progressive win multipliers in free spins in a manner similar to Jammin' Jars. In contrast, Blobsters Clusterbuster loops things back to the original game, the Dragon one.
There are differences, though, and not just with the outer layer. The unlockable features in Blobsters Clusterbuster have been altered, symbols are upgraded rather than being removed for the first feature, and the third feature has Super Symbols rather than multipliers as was used before. This time, multipliers are injected into Blobsters Clusterbuster's action when Blobby's UFO is activated in free spins. Swings and roundabouts in some ways, but Blobsters Clusterbuster's mix of gameplay is capable of producing higher winning potential than Dragons Clusterbuster, coming in at 7,517 times the bet, though this is a lot less than the previous leprechaun version if you're looking for the biggest potential one of the lot.
A bigger max win is generally a positive thing when it comes to a follow-up slot, but Blobsters Clusterbuster doesn't exactly propel the range to incredibly loftier heights from a technical perspective when compared to what came before. However, it certainly does not tarnish the Clusterbuster name or hold it back either, so the bubbly extra-terrestrial thing, along with the tweaks it has to offer, might be enough to convince fans to have another go at some busting.
Good
Blobsters Clusterbuster doesn’t possess any major Clusterbuster technical advancements, but its friendly blobby alien theme might win over the undecided.