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Cluster Tumble Review
Several online slots feature ‘Tumble’ in the title, but they aren't always thematically linked. Cluster Tumble follows in the footsteps of a previous Tumble release, with the cinematic intro revealing that the Husband Explorer from that game has gone missing.
His Explorer Wife is on the trail. You can anticipate lengthy and satisfying exploding cascades in this release, which remove stone blockers that sometimes come with modifier action. Payouts up to 20,000x your stake are possible via the unlimited +3 incrementing bonus round multiplier, but clearing the grid to increase it is not always easy.
Cluster Tumble Slot Features
Wilds can land anywhere on the grid and substitute for regular pay symbols to help complete winning clusters. Wilds have up to 5 lives, decreasing by 1 each time the wild is used in a win. Between 4 and 40 matching symbols in a cluster anywhere on the grid trigger payouts, and 40+ awards payouts of 50, 100, or 2,000 x your stake.
The Cascading Wins mechanic functions differently than expected. Not only are winning symbols removed, but all adjacent symbols as well. Adjacent stone blocker tiles are also removed, increasing the grid size. New and existing symbols drop down to fill the gaps, and the feature continues as long as you keep winning.
Some of the stone blocker tiles feature icons indicating their modifier abilities, which become active if adjacent to a winning symbol:
- Wild - generate wild symbols (with or without countdown lives).
- Lightning Win - turns into a random pay symbol, and all matching symbols generate a win regardless of symbol locations.
- Fire Transform - turns into a random pay symbol, with 1 or 2 symbol types then turned into the same symbol in the cascade that follows.
The Bonus Round is triggered by clearing all the stone block symbols from the grid or landing 3 scatters anywhere in view in the same cascading sequence. You get 5 free spins either way, and clearing all the stone blocks during the feature awards an x3 win multiplier. The multiplier increases indefinitely by +3 every time you clear the grid, and scatters that land award +1 extra spin.
Non-UK players can use the Bonus Buy feature, which offers 2 options. The standard version costs 100x your stake and provides 5 free spins. A more volatile option costs 200x your stake, with the difference being that the multiplier increases by +6 per cleared grid instead of +3. The RTP increases to 96.48 % or 96.57 %, respectively.
The 200 Spins Cluster Tumble Slot Experience
You can observe a bit of the base game before the regular bonus round is purchased. The volatile version is purchased immediately afterward, and you can see how we fared.
Review Summary
The cinematic story adds a charming and romantic frame to the gameplay. Cluster Tumble is bound to draw you into the action as you watch the chain reaction fireworks of exploding tiles that a single win can ignite. The right pace is essential in a game with so many lengthy cascading sequences, and it is well executed.
The gameplay is satisfying and immersive at all stages, but keep in mind that you will likely need bonus round multiplier action to truly make a difference. Clearing a 64-tile grid is far from easy, especially since you usually start with only 10-20 symbols surrounded by stone blockers. Many times you'll get a single larger win (if even that), while the remaining free spins award little to nothing. Up to 20,000x is possible on a good day, and overall this is an engaging game for fans of the grid style.
| Pros | Cons |
|---|---|
| Cascades destroy winning + adjacent symbols/blockers | Cinematic love story is cheesy |
| Stone blockers can come with 3 unique modifiers | The explorer husband and wife could use a name |
| FS w/ unlimited cleared-grid multiplier that increases by +3 | |
| Volatile FS buy option w/ +6 incrementing multiplier (not UK) | |
| Solid 96.4 % RTP (and not customizable!) | |
| Win up to 20,000x your stake |
If you love Cluster Tumble Slot you should also try:
Another game where stone symbols block the entrance, and removing them all is how you trigger the bonus round. You can choose from 3 different options, and the max win is significant.
Another game follows a female explorer who discovers new Aztec cities. All three bonus rounds come with a progressive win multiplier, and the top-tier FS round offers a great payout.
Another game is based around a female adventurer. This release features a rolling reels win multiplier that can lead to base game payouts. The multiplier is increased in the bonus round, and there are also fixed jackpots.
