Cubes (Hacksaw Gaming) – Review & Demo Play

Cubes Slot Review

Hacksaw Gaming's Cubes is a minimalist cluster pays slot that clicked with me straight away. It starts on a rainbow coloured 5x5 grid and grows as you land wins, pushing out to a roomy 11x11. The centre cube carries a progressive multiplier that ties to cluster size, which adds a neat twist to the flow. Medium volatility with an RTP of 96.35 percent keeps it steady, while max returns up to 3,000x mean there is proper headroom when the features line up.

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Review

About the Cubes Slot

On the surface Cubes looks stripped back, yet the motion sells it. Hit spin and the coloured blocks pop and flip, then settle into a new pattern. Wins form from five or more connected squares of the same colour anywhere on the grid. Each successful step adds a new outer ring, so the board can swell from 5x5 to 7x7, 9x9 and finally 11x11. The audio is light and the visual style keeps focus on clusters and growth.

Under the hood it sits in that sweet medium variance lane, so I can pace sessions without sharp swings dominating every run. The published RTP is 96.35 percent, which is a touch above the usual mark. Stakes fit most budgets, and the pay model rewards bigger clusters cleanly. I rate the concept as clever rather than flashy, and the way the grid stretches between wins gives you that feeling of momentum that suits short on the go play.

Cubes Slot Gameplay

Cubes runs a cluster pays engine with no paylines to map out. Land at least five adjoining blocks of the same colour and the game pays, with new rings growing around the existing grid after each win. The starting 5x5 can expand to 7x7, then 9x9, and capped at 11x11. New clusters can form as the area widens, and the original positions hold while the frame enlarges. It feels like a puzzle that breathes between hits.

The centre tile marked with an X is the Middle Multiplier. When a winning cluster includes that middle position, your payout is multiplied by the number of cubes in that cluster, up to 22x. So a six block pattern through the centre pays with a 6x multiplier, a tidy bump that stacks well with bigger shapes. It is simple to read while you play, and I rate the mechanic as the hook that makes base spins feel alive.

A neat quirk around colour carryover exists. If your win matches the colour tied to the centre, that cluster can stick while the grid grows, giving it room to branch into a bigger shape on the next expansion. Land fresh wins of the same colour and the multiplier keeps pace. It is not a complex stack of modifiers, but how size, position, and timing work together creates those base game pops that hold my attention.

Wager in Cubes

Betting is straightforward, with stakes from 20p up to £100 per spin. Payouts scale with cluster size, and if a win runs through the middle, the Middle Multiplier applies up to 22x. The RTP sits at 96.35 percent and volatility is medium, so I can size bets to session goals without wild spikes. Top returns reach 3,000x, while a special 2,500x prize exists during the feature. It is a clean maths model that rewards patience and shape building.

Symbols in Cubes

Cubes drops the usual icons and sticks to plain colours. You get six symbols in total, namely green, yellow, red, blue, purple and cyan or turquoise, and they pay the same values. A five block cluster pays 0.10x, scaling up to 40x for groups of 25 or more. There are no Wilds or Scatters cluttering the screen. The game lets the clusters and the Middle Multiplier do the lifting, which keeps the paytable easy to track mid session.

Symbols and payouts

25+	x40
20-24	x32
15-19	x24
12-14	x9
10-11	x4
9	x3
8	x1.5
7	x0.3
6	x0.2
5	x0.1

25+	x40
20-24	x32
15-19	x24
12-14	x9
10-11	x4
9	x3
8	x1.5
7	x0.3
6	x0.2
5	x0.1

25+	x40
20-24	x32
15-19	x24
12-14	x9
10-11	x4
9	x3
8	x1.5
7	x0.3
6	x0.2
5	x0.1

25+	x40
20-24	x32
15-19	x24
12-14	x9
10-11	x4
9	x3
8	x1.5
7	x0.3
6	x0.2
5	x0.1

25+	x40
20-24	x32
15-19	x24
12-14	x9
10-11	x4
9	x3
8	x1.5
7	x0.3
6	x0.2
5	x0.1

25+	x40
20-24	x32
15-19	x24
12-14	x9
10-11	x4
9	x3
8	x1.5
7	x0.3
6	x0.2
5	x0.1

Special

Special

Multiplier

Special Features in Cubes

The features list is short yet right on point. The Middle Multiplier sits on the centre tile and fires whenever a cluster crosses the middle, setting the multiplier to the size of that cluster, capped at 22x. In practice I see a lot of 6x to 10x hits during strings, with the odd bigger spike when the space opens up. It is a crisp risk reward layer that plays well with cluster building as the grid breathes.

Reel Expansion does the heavy lifting. Every time you hit a win, a new ring appears around the current layout and all original cubes stay put, taking the board from 5x5 to 7x7, 9x9, then 11x11 at most. If your held cluster shares the centre colour, it can sit in place and grow as the frame enlarges. Those chained steps often prime the bonus and give base spins a proper arc without drowning the screen in extras.

Bonus Round in Cubes

The bonus round is triggered in a neat way. Above the grid sits the word CUBES, and each different coloured winning cluster in a sequence lights one letter. Fill all five with unique colours in a round and you get 10 free spins, along with a random colour that turns sticky for the duration. I like this trigger because it fits the cluster flow and often lands after a stretch where the board has already grown.

In free spins the grid size does not reset on dead spins, so you can nurse the layout towards 11x11 while the chosen colour sticks and stacks. Build that sticky group to 70 cubes and the Colour Blast awards a flat 2,500x. The centre multiplier still applies when the pattern runs through the middle, up to 22x, which lets good setups snowball. That mix gives the bonus proper punch without turning it into a chaotic mess.

Gallery of video and screenshots of the game