Cubes 2

At 96.3%, the RTP on Cubes 2 is modestly above the industry average of roughly 96.0% and sits just a fraction below the original Cubes. For a high-volatility title, that's a reasonable return figure — though the game's RTP range feature means the actual rate can shift depending on which mode you're playing, so check your casino's published variant before depositing.

The 10,500x max win is where Cubes 2 separates itself from its predecessor. That ceiling is reached through the Color Blast Jackpot in the most volatile bonus round, with jackpot tiers of 500x, 2,500x, and 7,000x contributing to the total. To put that in context, the original Cubes caps at 3,167x — Cubes 2 is more than three times higher. Compared to other Hacksaw titles, the 10,500x ceiling is competitive but not at the absolute top of the studio's catalogue; Hacksaw releases like Chaos Crew push past 12,000x, though Cubes 2's 96.3% RTP edges above the studio's typical 96.20% baseline.

The 15.68% hit frequency means roughly one in every six spins produces a win of some kind, but in a cluster-pays format with expanding grids, many of those wins are small single-cluster returns that barely move the balance. The real weight sits in the bonus rounds, which is standard for high-volatility design but worth factoring into your session bankroll.

Cubes 2 runs on a 5×5 cluster-pays grid at the start of each spin. A win requires a cluster of five or more matching-color symbols touching horizontally or vertically. Every time a winning cluster lands, the grid expands by one row on all four sides — so a strong spin sequence can push the playing field all the way to 11×11, creating 121 positions versus the starting 25. When no new winning cluster forms, the grid resets to 5×5 for the next spin.

The corner positions on the 5×5 grid are marked with an X symbol. These X markers stay in place as the grid grows. If a winning cluster includes an X, that X converts to a number equal to the total symbols in the winning cluster, and that number becomes the spin multiplier. Multiple active X symbols have their values added together rather than multiplied, which keeps the math transparent but caps the multiplier ceiling relative to what a multiplicative system would produce.

The cascading mechanic — called Avalanche here — removes winning symbols and drops new ones into the vacated spaces, giving each spin multiple chances to chain wins without an additional bet. Combined with the expanding grid, a single good spin can compound quickly, though in practice the base game sequences tend to be short before the grid resets.

Cubes 2 offers two distinct bonus paths, which is one of the clearest upgrades over the original. The regular Free Spins mode triggers when five different-color cluster wins land in the same spin sequence. Before the round begins, a pick-from-five mechanic determines your sticky color — the first color revealed ends the pick phase and locks in that color for the duration of free spins. During the round, all wins in the sticky color remain frozen on the grid rather than clearing, enabling repeated wins from the same symbols. Color Blast Jackpots of 500x, 2,500x, and 7,000x are available within this mode, with the 7,000x tier forming the backbone of the 10,500x overall maximum.

The Multi Color bonus round operates on a similar sticky-cluster framework but replaces the Color Blast Jackpots with corner multipliers, and up to four colors can become sticky simultaneously. This creates a different risk-reward profile — more potential for multiplier stacking but no fixed jackpot tiers. The grid does not reset during either bonus round, meaning a long win chain can push the grid to its 11×11 maximum and keep it there.

The Buy Feature gives direct access to either bonus mode without waiting for organic triggers. The Multi Color option is described as the less volatile of the two buy paths, offering a middle-ground entry point for players who want bonus exposure without committing to the highest-variance route. Note that the Buy Feature is not available to players in the UK.

Across Spindex's five crypto-casino sources, Cubes 2 recorded 658 tracked bets in the last 30 days. That's a moderate volume for a 2021 release — enough to draw meaningful signal without the noise that comes from very thin datasets. The top recent hit logged on our network came in at 652x, which sits well below the 10,500x theoretical ceiling but is broadly consistent with what high-volatility cluster slots produce in real tracked sessions rather than in promotional highlight reels.

The 652x top hit is notable in context: it represents roughly 6% of the maximum possible payout, which reflects the steep distribution typical of high-variance games where the very top wins are rare outliers. Players using Spindex to assess session expectations should treat the 10,500x figure as a ceiling that requires the Color Blast 7,000x jackpot to fire alongside a strong multiplier setup — a combination that tracked data suggests is infrequent.

Volume at 658 bets over 30 days indicates steady rather than trending activity. Cubes 2 is not currently in our hot-slots tier, but it maintains consistent play across crypto casinos, suggesting a loyal niche audience rather than broad casual traffic. If you're tracking variance patterns before a session, the live data page for this slot is updated daily.

The reelset-changing mechanic is what makes Cubes 2 structurally unusual. Most cluster-pays slots operate on a fixed grid; here, the number of active positions can increase sixfold within a single spin sequence. The practical effect is that a modest opening cluster can seed a cascade that progressively enlarges the grid, creating more landing positions for subsequent drops and increasing the probability of additional clusters forming.

In the base game, the grid rarely reaches its 11×11 maximum because sequences typically stall after two or three cascades. The bonus rounds are where the non-resetting grid becomes genuinely impactful — sticky clusters combined with an expanding field mean that a well-seeded free spins round can sustain itself for many cascades before the sequence ends.

For players coming from fixed-grid cluster slots like Sweet Bonanza or Jammin' Jars, the mental model needs adjustment. The bet-per-spin is fixed, but the effective size of the game board is not, and that asymmetry is central to how Cubes 2 generates its top wins.

Cubes 2 is built for players who are comfortable with extended losing sequences in exchange for periodic high-multiplier wins. The 15.68% hit frequency and high volatility classification mean that base-game sessions can feel lean, and the bonus trigger — requiring five different-color cluster wins in a single spin sequence — is not a frequent occurrence without the Buy Feature.

Players who enjoyed the original Cubes but found its 3,167x cap limiting will find Cubes 2 a natural step up. The mechanics are familiar enough that there's no learning curve, but the higher variance and larger max win represent a genuinely different risk profile rather than a cosmetic update. Conversely, players new to the Cubes format who prefer steadier return patterns would be better served starting with the original at medium volatility.

The Buy Feature makes Cubes 2 particularly relevant to bonus-buy players on crypto casinos, which aligns with where most of our tracked volume originates. The Multi Color buy option provides a lower-variance entry to the bonus than the standard free spins route, giving players a degree of control over their session risk that pure organic-trigger play doesn't offer.

Cubes 2 does what a good sequel should: it preserves the mechanic that made the original worth playing and adds enough new structure — dual bonus rounds, corner multipliers, Color Blast Jackpots, a tripled max win — to justify its existence as a separate title rather than a reskin. The 96.3% RTP is solid, the expanding grid remains one of the more distinctive reel structures in cluster-pays slots, and the Buy Feature adds practical value for players who don't want to grind for organic bonus triggers.

The one honest reservation is base-game pacing. At 15.68% hit frequency with high volatility, the stretches between meaningful wins can be long, and the grid resets after each failed cascade mean those dry spins feel repetitive in a way that fixed-grid slots don't. That's not a flaw so much as a design consequence of the mechanic, but it's worth knowing before a session.

For high-variance cluster-pays players, Cubes 2 earns a place in the regular rotation. For everyone else, the original Cubes is the more forgiving starting point.