About OnlyPlay
OnlyPlay is a relatively young iGaming supplier, having concentrated on its own casino content since 2020. Its catalogue now stretches beyond conventional video slots to crash games, instant-win releases and mobile-oriented formats. The studio also experiments with mechanics such as TapGame, TNT-Booster, Progress and Speed Up. That broader catalogue matters because it shows more original thinking than I found in its Bonanza range.
OnlyPlay's contribution to the category currently revolves around one recognisable character and one underlying formula. Piggy Bonanza established the series, while Piggy Bonanza Halloween and Piggy Bonanza Valentine adapted it to seasonal themes. These are closely related editions rather than three fundamentally different slots.
The Piggy Bonanza formula
The games use a 6x5 grid, count-based wins and cascades. Instead of following fixed paylines, players need enough matching symbols anywhere on the screen. Winning symbols disappear and are replaced, allowing another result to form within the same paid spin.
This construction is immediately familiar to anyone who has played modern sweet-themed tumble slots. During free spins, special donut, rose or similarly themed symbols can carry multipliers as high as 100x. Multiple multipliers involved in the same cascade may combine, which is where most of the advertised potential sits.
| Game | Main identity | What materially changes |
|---|---|---|
| Piggy Bonanza | Original pig-and-sweets presentation | Establishes the 6x5 cascade and multiplier format |
| Piggy Bonanza Halloween | Halloween reskin | Seasonal symbols and presentation around the same core game |
| Piggy Bonanza Valentine | Valentine's Day reskin | Chocolate-box scatters and rose multipliers, but little structural change |
Four scatters normally activate ten free spins, while additional scatters can extend the feature. The attraction is easy to understand: a modest cluster can start a cascade, another multiplier can drop, and the displayed total can grow quickly. The other side of that design is high volatility. Plenty of paid spins may produce little more than short cascades that stop before any meaningful multiplier appears.
RTP figures need checking by version
I would not publish one set of Piggy Bonanza specifications without identifying the build. OnlyPlay's current product page lists the original game at 95.50% RTP with maximum exposure of 6,853x. That conflicts with the 96% RTP and 11,000x maximum previously shown on this site's game card. The two seasonal editions are generally listed at 95.50%, although maximum-win figures can also differ between catalogues.
OnlyPlay can supply more than one mathematical configuration, so the information panel inside the actual casino game remains the decisive source. A theoretical RTP is a long-run model rather than the return expected from one session.
Is OnlyPlay genuinely developing Bonanza slots?
There is a proper series here, but I would describe it as a compact franchise rather than a distinct Bonanza platform. The pig character provides continuity and the seasonal editions are polished enough, yet the underlying combination of a 6x5 screen, count pays, cascades, free spins and additive multipliers follows an already crowded market formula.
My main criticism is that the Halloween and Valentine's versions do not substantially rethink the maths. They give operators timely lobby artwork and give returning players a familiar game, but a player who has seen one edition will understand the others almost immediately. OnlyPlay's more unusual work can be found in its tap, crash and booster-style products rather than in this particular series.
From an Australian perspective, availability must be checked with the operator rather than inferred from OnlyPlay's supplier status. The Interactive Gambling Act restricts the provision of online casino services to people in Australia, and an overseas supplier approval does not by itself authorise a casino to accept Australian players. Gambling should be treated as paid entertainment with a real risk of losing the stake.
