Piggy Cluster Hunt Slot Review

Piggy Cluster Hunt is a 7x7 cluster-pays slot from Bullshark Games, released on 27 February 2024 and built and distributed on Hacksaw Gaming's OpenRGS platform, which the studio confirmed to us. The headline numbers are a default RTP of 96.23%, a hit frequency of 38.34%, a maximum win of 15,000x the stake and a volatility rating of 3 out of 5 on Bullshark's own scale. Default bet levels run from €0.10 to €100.

The demo above runs the studio's free-play build with a play-money balance. It is the same game logic and the same symbol set, so it is a perfectly good way to see how often the multiplier bar fills and how the cascades behave before you decide whether the real-money version is worth your time. What it cannot do is reproduce the emotional arithmetic of a real bankroll, so treat it as a mechanics preview rather than a dress rehearsal. Gambling is strictly 18+.

The grid is 7x7, which is 49 positions, and wins are formed by clusters of five or more matching symbols rather than paylines. Winning clusters are removed, surviving symbols drop and new ones fill the gaps, so a single paid spin can resolve into a chain of consecutive wins. That cascading structure is the engine the whole maths model sits on, because the multiplier mechanic is keyed to how deep into the cascade sequence you get.

The theme is rural and deliberately gentle: a piggy protagonist, countryside backdrop, no attempt at the grimdark posturing that fills a lot of the release calendar. It is competent rather than distinctive, and the art direction will not be the reason you stay or leave.

Progressive Win Multiplier

Above the grid sits a multiplier bar with three slots. Each spin draws between zero and three multipliers, assigned to the first, second and third positions. The first position's value applies to the initial drop. If a cascade produces a further win, the first and second multipliers are either added together or multiplied together, and the result applies to that cascade. After the second additional cascade, all three are combined and applied to that cascade and everything after it. A new spin resets the bar and draws three fresh values.

The important structural detail is that a spin can draw zero multipliers. That is where a meaningful chunk of the low-end variance lives: two spins with identical symbol outcomes can pay wildly differently depending on what the bar drew. The sheet lists possible additive values of 2x, 3x, 4x, 5x, 10x, 12x, 15x, 20x, 30x, 40x, 50x, 75x and 100x; the documentation cuts off before enumerating the multiplicative values, so I will not guess at them. The combination rule — sometimes additive, sometimes multiplicative — is what creates the long right-hand tail required to reach 15,000x.

Exploding Wilds

When an Exploding Wild lands it detonates and adds up to eight extra Wilds around itself. In the base game the minimum is two extra Wilds; during Wild Call Free Spins the minimum rises to four. That is a quiet but significant buff: raising the floor, not the ceiling, is what turns a feature from a lottery into a reliable contributor, and it explains part of why the free spins feel materially different rather than just longer.

Wild Call Free Spins

Land three or more FS scatters simultaneously in the base game to trigger the round: three scatters gives 8 spins, four gives 12, five gives 15. The key rule is that during Wild Call Free Spins there are no empty positions on the multiplier bar for the whole feature. Combined with the higher Exploding Wild floor, that removes the two biggest sources of dead spins in one stroke.

A 38.34% hit rate is high for a modern cluster game and tells you the base loop is designed to keep returning small amounts. Roughly two in five spins pay something, but with only 96.23% going back in total and a 15,000x ceiling, most of those returns will be sub-stake dribbles. This is a grinder, not a game that lurches.

The bonus figures are where expectations need managing. In the base game, the sheet lists Wild Call Free Spins at 1 in 154.6 and Wild Call Free Spins 2 at 1 in 154.6. Read as two distinct entries, that is a combined trigger somewhere in the region of one spin in 77 — respectable, but still long enough that a 200-spin sitting can end without one. In the BonusHunt FeatureSpins mode, each entry is listed at 1 in 43.4, which is the whole point of paying for feature spins.

Feature RTPs are tightly clustered: BonusHunt FeatureSpins 96.35%, FeatureSpins 96.20%, Wild Call Free Spins 96.19%, Wild Call Free Spins 2 96.31%. Nothing here punishes you for buying in, which is more than can be said for plenty of competitors.

One warning that matters more than any feature description. The game ships in two RTP versions — 96.23% and 94.32% — and the operator chooses which one to run. Nearly two percentage points is a large difference on a game you intend to grind. Always open the in-game info screen at your casino and confirm the figure before you commit a bankroll.

Finally, the marketing-versus-maths point. A 3-out-of-5 volatility badge next to a 15,000x maximum is an uneasy pairing. The high hit rate justifies the medium label for the base loop, but the distance between your typical win and the top prize is enormous, and the multiplier bar's zero-draw possibility adds swing the rating does not advertise. In practice, budget as you would for a medium-high game: small units, long sessions, and no expectation of reaching the ceiling.

It suits players who like long cluster sessions with frequent small returns, who enjoy watching a multiplier bar build across cascades, and who can accept that the headline prize is effectively decorative. It also suits anyone easing into cluster mechanics, because the 38.34% hit rate forgives a lot.

Skip it if you want big base-game jolts without a bonus, if a trigger rate in the region of one in 77 spins frustrates you, or if you need the top prize to feel reachable. Note also that Piggy Cluster Hunt is not available to UK players; the sheet approves Malta, Curacao, Denmark, Latvia, Spain, the Netherlands, Ontario, Romania, Greece, Georgia, Croatia and Italy, with the UK, Sweden, Germany, Portugal, Colombia, Buenos Aires Province and Brazil excluded.

Piggy Cluster Hunt does the hard part well: the base loop genuinely pays at the rate the sheet claims, the free spins round fixes its own weak points by guaranteeing multipliers and raising the Wild floor, and the feature RTPs are honest across the board. The reservations are real but narrow — the 3/5 volatility label undersells the swing created by zero-multiplier spins, the 15,000x figure is marketing rather than a planning assumption, and the existence of a 94.32% build means you cannot trust the default RTP without checking. On balance this is the most player-friendly cluster game in Bullshark's range, provided you verify what version you are actually playing.