Cubes 2 Demo & review

Cubes 2 is a cluster game with no symbols at all, only coloured cubes, and every win makes the board bigger. Hacksaw Gaming released this sequel to Cubes in February 2021, at High volatility. It is built for players who want a single mechanic they can read at a glance, and who accept long runs of nothing between the spins that blow the grid open.

How Cubes 2 works

Five or more cubes of the same colour, touching side to side, form a winning cluster anywhere on the grid. There are no pictures to learn, just colours and cluster sizes. All six colours pay the same, from 0.2x the bet for a five-cube cluster up to 80x for the biggest.

The intro screen: clusters of 5, the expanding grid and the headline max win. FluxPlays demo test, 2 November 2026.

The rule that decides everything is the grid. Each spin starts on 5x5, and a win grows it by one cube on every side, to 7x7. If the win then climbs by at least one paytable level, the grid grows again, up to two more times, through 9x9 to 11x11. The game pays nothing until the growth stops. One win can therefore turn into a chain of bigger and bigger boards.

Cubes 2 corner multipliers: what stays on the grid

The four corners of the starting 5x5 grid each hold a cube marked X. When a winning cluster includes one, that cube becomes a multiplier equal to the cluster's size, so a cluster of eight cubes through a corner is worth 8x. If one cluster touches several corners, their values are added before the win is multiplied.

Spin 75: a five-cube yellow cluster turns the top-left corner into 5x as the grid grows. FluxPlays demo test, 2 November 2026.

Our capture from spin 75 shows it working. Five yellow cubes ran through the top-left corner, and the X there became 5x. The same spin went on to grow the grid all the way to 11x11 and set up the free spins.

Free spins and the Multi-Color round

Free spins need five or more winning clusters in different colours on one spin. A pick screen follows: the mystery cubes either add spins to the starting 5, up to 12 in total, or reveal a colour, and the round starts as soon as a colour appears.

The pick screen after spin 75, before the sticky colour appeared. FluxPlays demo test, 2 November 2026.

That colour is sticky. Winning cubes of it stay in place until the round ends, and the grid no longer shrinks between spins. A round that starts big therefore stays big, and every sticky cube is a head start on the next cluster.

Colour Blast levels

The sticky colour also feeds the Colour Blast table. A meter counts its cubes against 50, and passing that mark pays an extra 500x at your bet level. Passing 70 cubes pays 2,500x and passing 90 pays 7,000x. The top step alone is worth two thirds of the game's ceiling.

The free spins rules with the Colour Blast table. FluxPlays demo test, 2 November 2026.

Multi-Color Free Spins

Multi-Color Free Spins is not only a buy. It triggers naturally when all four corner multipliers land in the same colour on the initial 5x5 spin, and it awards 5 to 10 free spins. The picks work the other way round: every colour the mystery cubes reveal becomes sticky, possibly several, and the feature starts once the number of spins appears. More sticky colours mean more of the grid working for you, but this round is capped at 7,500x and the rules list no Colour Blast table for it.

Cubes 2 bonus buy: prices and what you get

Both rounds can be bought, and oddly the one that can make more colours sticky is the cheaper of the two.

The rules give no separate volatility label for either buy.

The Bonus Buy panel at our $1 bet. FluxPlays demo test, 2 November 2026.

RTP, volatility and max win

The rules list a 96.33% RTP for the base game, from ten billion simulated rounds, and our demo showed no other version. Hacksaw rated the game High volatility at launch; the demo itself gives no label. The smallest stake is $0.20 and the largest $2,000. The intro puts the ceiling at over 10,500x the bet, which in practice means a full-size grid in free spins with the sticky colour climbing the Colour Blast steps.

Our Cubes 2 demo test

One spin made our base game. On spin 75, five clusters in different colours opened the free spins, the picks added a sixth spin before a colour stuck, and the round ran on a grid already at 11x11. It paid $22.10, about half of everything the 100 spins returned. Only 18 spins paid at all, and the longest gap between wins ran to ten.

The natural round's result: $22.10 from six free spins. FluxPlays demo test, 2 November 2026.

The two buys went the opposite way to their prices. The Multi-Color round revealed two sticky colours, green and teal, and paid far more than the standard round, which never got going in its five spins. No Colour Blast step was reached: the meter stopped at 6 of 50 in the natural round and 5 of 50 in the bought one. Our record shows no corner multiplier larger than the one on spin 75, and four same-colour corners never came up, so everything said about bigger multipliers, the Colour Blast payouts and the natural Multi-Color trigger comes from the rule text. Two bought rounds and one session show how the features behave, nothing about what they return over time.

Is Cubes 2 worth playing?

Yes, if you like a game you can read in one spin and enjoy watching a board grow. The expanding grid is a strong idea, and free spins that keep the grid at full size give it a real top end. Everything else is stripped away, which is the appeal and the limit.

Pick Le Bandit if you want a Hacksaw cluster game at Medium volatility, where wins leave Golden Squares behind and a Rainbow cashes them in. Choose Cubes 2 for the purer version of the idea: no symbols, just a grid that grows.

In the demo, watch the corners for a while before you buy anything. A cluster through an X shows you how the multipliers scale, and that is the part the free spins build on.