Aloha! Cluster Pays slot review

Aloha! Cluster Pays slot in brief

Aloha! Cluster Pays is one of NetEnt's cluster games: a bright Hawaiian-themed grid where symbols need to bunch together to pay. NetEnt was founded in 1996 in Stockholm and has been part of Evolution since December 2020.

The game is built around one idea, the Sticky Win re-spin, which gives a winning cluster the chance to grow. If you like that kind of chain reaction, it's worth a look; if you prefer a simple line slot, NetEnt's Starburst is the more traditional choice. Browse more in our slot reviews hub.

How cluster pays work on a 6×5 grid

A cluster is a group of identical symbols that touch each other on the grid. In Aloha! Cluster Pays the minimum is nine, which is a high bar: the grid has 6 × 5 = 30 positions, so a minimum cluster fills almost a third of the screen.

Compare that with many newer cluster games that pay from five symbols on a 7×7 grid of 49 positions, which is about a tenth of the screen. A larger minimum means base-game wins are less frequent, which is exactly why the Sticky Win re-spin matters here. Our cluster pays glossary entry covers the general mechanic.

How the features work

Main feature: Sticky Win re-spins. After any winning cluster, the symbols in that cluster can stay held in place while every other position re-spins. If the re-spin adds matching symbols to the cluster, it grows and the re-spin continues. When a re-spin adds nothing, the sequence ends. The paytable explains how the final cluster is valued.

1. A spin lands a cluster of nine or more matching symbols.
2. The winning cluster stays fixed on the grid.
3. All the other positions spin again.
4. If new matching symbols join the cluster, it grows and another re-spin follows.
5. When a re-spin adds nothing to the cluster, the sequence stops.

Free spins. Free spin symbols award between 9 and 12 free spins. During them, some low-paying symbols are taken off the reels, which leaves fewer symbol types to fill the grid. In principle that tilts clusters towards the better-paying symbols.

How many symbols are removed and the exact pay values are shown in the game's paytable. We only describe what NetEnt's published specifications confirm.

Aloha! Cluster Pays RTP in pounds

The listed RTP of 96.42% is the top version, which tells you lower versions exist. Casinos choose which one to run, so the number in your app could be lower. Wizard of Odds' slot maths page (opens in a new tab) explains how different RTP settings of the same game work.

At 96.42%, standard game maths gives an expected loss of £3.58 per £100 staked. At 10p a spin and the fastest pace UK rules allow (2.5 seconds, so up to 1,440 spins an hour), you would stake £144 an hour and expect to lose about £5.16 on average. Slower play lowers both figures.

To see which version you're on, open the game's information or help screen and look for the return to player line. Our step-by-step guide on how to find the RTP in an app covers the common places it's kept, and the RTP on mobile page explains why the app itself doesn't lower it.

Aloha! Cluster Pays on a £20 budget

The expected loss is the same at each stake (£20 × 3.58% ≈ 72p), because it depends on the total staked, not how it's split. What differs is how much luck decides the result. With only 20 spins at £1, one good or bad spin dominates.

Because volatility for this game isn't in the specifications we verified, we can't tell you how swingy it is. Assume a session can go well below average, and set a deposit limit in your casino app first.

Playing Aloha! Cluster Pays on mobile

The game runs in casino apps and mobile browsers on iPhone, iPad and Android. A 6×5 grid is less crowded than the 7×7 or 8×8 grids of many later cluster slots, so it's one of the easier cluster games to follow on a phone.

Re-spin sequences add animation time between results, which you'll notice on a slower connection. If you play on mobile data, our guide to casino app data usage covers what uses the most, and the best slot apps list compares apps on their slot range.

UK rules that shape Aloha! Cluster Pays

The Gambling Commission's 2021 package of online slot changes (opens in a new tab) took effect on 31 October 2021: no autoplay, no spins faster than 2.5 seconds, no turbo or slam-stop, and no celebrating a return equal to or below the stake. That last rule matters for cluster games, where a small win after a long re-spin chain can still be less than you staked.

Stake limits also apply: £5 a spin for players aged 25 and over and £2 for 18 to 24-year-olds, as set out in the Commission's stake limit guidance (opens in a new tab). Our page on slot stake limits on mobile explains how apps apply them.

Other cluster pays slots to compare

If Aloha's nine-symbol minimum feels slow, these cluster games pay from smaller groups on larger grids:

Most of those are listed as high volatility (Gemix is medium), so check the volatility rating before you assume a smaller cluster means a steadier game.

Aloha! Cluster Pays review: pros and cons

Where to play Aloha! Cluster Pays with a welcome offer

We haven't confirmed which partner apps carry Aloha! Cluster Pays, so search the game lobby before you deposit. The offers here are all slot offers, 18+ only, with terms.

New UK customers at PlayOJO, except in Northern Ireland, get 80 free spins on Big Bass Bonanza with a first deposit of at least £10. They're 10p each (£8 in total), have no wagering, and are only available through the designated offer link.

Coral Casino's app gives new players 100 free spins at 10p on selected games after a £10 slots bet, from 1 October 2026 to 1 February 2027. You get 48 hours to accept and 7 days to play them, and winnings carry no wagering. Neteller, PayPal, Paysafe, Skrill, prepaid cards and some debit cards are excluded.

Ladbrokes Casino pays out 50 free spins a day for your first 10 days (maximum 500) once you deposit and spend £10 on slots. Spins are 10p on selected games, must be claimed before 23:59 daily, last 7 days and have no wagering; prepaid cards, PayPal, Paysafe, Neteller, Skrill and Moneybookers don't qualify.

18+. Every casino game has a built-in house edge, so over time you should expect to lose what you stake. Set a budget before you play and stop when it’s gone: safer gambling tools and support. Free, confidential help: National Gambling Helpline 0808 8020 133.