Cubes 2 Slot Review
Hacksaw Gaming have carved out a distinctive niche with their grid-based slot mechanic, moving away from traditional spinning reels in favour of cluster pays on expanding grids. When they released the original Cubes, they demonstrated the appeal of this approach, though the medium volatility fell short for players seeking something more ambitious. Cubes 2 addresses this directly—delivering a sequel that ups the ante significantly.
This isn’t just a minor refresh. The jump from medium to high volatility (5 out of 5) signals Hacksaw Gaming’s intent to serve a different audience—one that values win potential over consistency. The expanding grid that grows from 5×5 to 11×11 with consecutive wins creates a genuinely engaging Tetris-like progression that separates Cubes 2 from the countless standard reel slots filling the market. With an 11,000x maximum win and two distinct bonus modes featuring sticky symbols and tiered jackpots, this sequel feels like a proper upgrade rather than a cash-grab.
Base Game & Features
Cubes 2 operates on a cluster pays mechanic rather than traditional paylines—a fundamental departure from standard slot design. The game starts on a 5×5 grid, but here’s where it gets interesting: each winning cluster (5 or more matching symbols) triggers a cascade and expands the grid. Land consecutive wins, and the grid grows progressively up to a maximum 11×11 size. This expanding mechanic creates genuine momentum and keeps the base game engaging rather than merely serving as a filler between bonus rounds.
The colour scheme features minimalist geometric symbols across five distinct colours—think Rubik’s Cube aesthetics rather than ornate fruit machine design. The symbols carry equal weight in the paytable, removing the hierarchy you’d find in traditional slots. This simplicity isn’t a weakness; it reinforces the focus on the underlying mechanics rather than distraction through theme.
The expanding grid mechanic significantly boosts win potential as the session progresses. Each expansion adds one dimension to the grid (5×5 becomes 6×6, and so on), exponentially increasing cluster size possibilities and creating a sense of escalation. Win frequency sits at approximately 15.68%, which is respectable for high volatility gameplay—you’re not constantly watching empty spins without hitting anything.
Bonus Features & Free Spins
Cubes 2 features two distinct bonus rounds, each with its own trigger and mechanics. This dual-bonus design adds strategic depth missing from many modern slots.
Colour Blast Free Spins
Land 5 cluster wins featuring different colours during a single spin, and you’ll trigger Colour Blast Free Spins. You begin with 5 free spins, but here’s where player agency enters—before each spin, you pick from cubes to add additional spins, with the potential to reach up to 12 spins total. This isn’t just flavour; the pick mechanic creates moment-to-moment engagement beyond passive watching.
During this mode, symbols matching your chosen colour become sticky—they remain locked in place across spins, allowing consecutive wins to build cluster size aggressively. The Colour Blast Jackpot feature adds another layer: reach 50 sticky blocks and you’ll unlock a 500x payout; 70 blocks triggers 2,500x; and if you reach 90 blocks, you’ll unlock 7,000x. Combined, these jackpots cap at 10,500x stake via this mode alone, creating genuine excitement during the bonus sequence.
Multi-Colour Free Spins
The alternative bonus route triggers when all four corner positions of your grid show matching colours on the initial spin. This rarer trigger (1 in approximately 223 feature attempts) awards 5–10 free spins. Like Colour Blast, symbols of your chosen colour become sticky during the bonus—the core sticky mechanic remains consistent across both modes.
However, Multi-Colour Free Spins don’t include the progressive Colour Blast Jackpots. Instead, the feature caps at 7,500x maximum win via this mode. Whilst lower than Colour Blast’s potential, it still represents a substantial payout and provides variety in how you experience bonus gameplay.
Bonus Buy & Ante Bet
Hacksaw Gaming offer a bonus buy feature allowing direct access to either bonus round without waiting for natural triggers. Colour Blast Free Spins can be purchased for 129x your stake, whilst Multi-Colour Free Spins cost 109x your stake. However, bonus buy carries a critical restriction: it is not available to players in the UK and several other restricted jurisdictions following UK Gambling Commission regulations. For players in unrestricted regions, bonus buy adds strategic flexibility—though at premium cost, meaning serious bonus buy play significantly impacts your session budget.
Interestingly, using bonus buy reduces the RTP marginally from 96.33% to 96.30%—an unusual design choice that reflects the premium cost.
Mobile & Compatibility
Cubes 2 runs on HTML5 technology, meaning you can play instantly across any device without downloading additional software. Whether you’re on an Android phone, iPhone, tablet, or desktop, the game optimises automatically for your screen size and resolution. The minimal visual design actually works in its favour on mobile—geometric shapes and clean interfaces scale beautifully without losing clarity on smaller screens. Performance remains smooth throughout extended sessions, and there’s no registration barrier to trying the game.
Our Honest Verdict
Rating: 8.5/10
Hacksaw Gaming have delivered a genuinely strong sequel. Cubes 2 addresses the original’s shortcomings by ramping volatility, increasing win potential, and refining the bonus mechanics. The expanding grid creates authentic engagement, and the two bonus modes with sticky symbols offer enough variety to justify replaying. An 11,000x maximum win represents a massive jump from the original Cubes (3,167x), and the 96.33% RTP sits competitively for high volatility gameplay.
This isn’t a slot for casual players or those nursing modest bankrolls. The high volatility demands patience through dry spells, and feature frequency—whilst reasonable at 1 in 223—means you’ll face stretches of base game action between bonuses. The sticky mechanic during free spins genuinely delivers engaging gameplay rather than mechanical repetition, and the Colour Blast Jackpot system adds credible win potential without feeling contrived.
Cubes 2 sits perfectly positioned for players who appreciated the original but wanted more challenge, higher potential, and more sophisticated bonus design. It won’t satisfy those seeking instant gratification or steady, predictable returns. But for serious players willing to commit a proper session budget to high volatility gameplay, Hacksaw Gaming have created something genuinely worth your time.
Cubes 2 FAQs
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What is the RTP of Cubes 2?
The RTP of Cubes 2 is 96.33%. However, with the bonus buy option, the RTP drops to 96.30%. -
What is the maximum win on Cubes 2?
The maximum win available on Cubes 2 is 11,000x the amount played, though the maximum guaranteed payout is 10,500x your stake. These wins are possible during the free spins bonus rounds with multipliers and Colour Blast Jackpot features. -
Does Cubes 2 have free spins?
Yes, Cubes 2 features two unique bonus rounds with free spins: Colour Blast Free Spins triggered by 5 different coloured cluster wins, and Multi-Colour Free Spins triggered when all corners of the grid match. Free spins can be retriggered and feature sticky symbols of a chosen colour. -
Can I play Cubes 2 on mobile?
Yes, Cubes 2 is fully playable on mobile devices. It was built using HTML5 technology and is optimised for all device screen sizes and resolutions. The game works on both Android and iOS devices with instant play and no registration required. -
Does Cubes 2 have a bonus buy feature?
Yes, Cubes 2 offers two bonus buy options: you can purchase the Colour Blast Free Spins for 129x your stake or the Multi-Colour Free Spins for 109x your stake. However, bonus buy is not available to players in the UK and some other restricted jurisdictions. -
How do I trigger the free spins in Cubes 2?
Free spins are triggered in two ways: (1) Colour Blast Free Spins—land 5 cluster wins of different colours in a spin sequence to start with 5 free spins. Before spinning, pick from cubes to add additional spins (up to 12 maximum). (2) Multi-Colour Free Spins—trigger when all four corners of the grid are the same colour on the initial spin. -
Is Cubes 2 a sequel to the original Cubes slot?
Yes, Cubes 2 is the sequel to the original Cubes slot, both developed by Hacksaw Gaming. Cubes 2 introduces several improvements over the original, including increased volatility (from Medium to High), higher maximum win potential, and the new Colour Blast Jackpot feature. -
What is the volatility level of Cubes 2?
Cubes 2 has High volatility (5 out of 5 rating). This is a significant increase from the original Cubes slot which had Medium volatility. High volatility means wins are less frequent but potentially larger, requiring more patience between winning spins.
