Knockout Riches Slot Review
PG Soft have built considerable reputation with their mobile-first approach, and Knockout Riches continues this strategy with a boxing-themed release that distinguishes itself through innovative mechanical design. Released in April 2025, the game immediately establishes a narrative framing—players follow Ruby “Flaming Rose,” a determined fighter clearing family debt through the ring. The theme resonates strongly with players seeking games that blend compelling storytelling with mechanical depth. This is a high volatility offering that rewards feature-building focused play, positioning it clearly for experienced slot enthusiasts rather than casual spinners.
Base Game & Features
Knockout Riches operates on a 5-reel, 3-4-4-4-3 reel configuration—a distinctive setup that expands significantly during gameplay. The reels can stretch to accommodate up to 20 rows on the centre reels (2, 3, and 4), whilst reels 1 and 5 range between 1 and 3 rows. This dynamic expansion underpins the entire mechanical structure. Rather than traditional paylines, the game features up to 8,000 ways to win, which can expand to 9,000 when the stacking feature fully activates. This multiway mechanic means winning combinations form from left to right across any position on the expanded reels, creating cascading win opportunities.
Avalanche & Cascading Reels
Winning combinations don’t simply pay and disappear. Instead, they trigger the Avalanche Feature, where winning symbols are removed and new symbols drop down to fill the spaces. This cascade continues until no new winning combinations form. Critically, each cascade counts toward triggering the game’s signature mechanic—three or more cascades activate the Stacking Symbols Feature, making the avalanche system foundational to the game’s win potential.
Stacking Symbols Feature
This is the mechanical centrepiece that defines Knockout Riches. When three or more cascades occur on a single spin, the Stacking Symbols Feature triggers. Here’s how it works: reels 2, 3, and 4 each have a value counter displayed above them, starting at 1. When a winning symbol lands on any of these reels, that reel’s counter increases by 1. After three consecutive turns without wins, the counter resets to 1. At each value level, reels 2, 3, and 4 fill with that many stacked copies of a randomly chosen symbol. Reels 1 and 5 transform into a random symbol type to complete combinations. The system caps at a maximum value of 20, creating escalating win potential as values build. During free spins, a crucial difference emerges: values persist across spins rather than resetting, allowing them to compound dramatically throughout the bonus round. This persistence mechanism creates the conditions for achieving the 10,000x maximum win potential.
Free Spins & Bonus Features
The free spins mechanic serves as the primary route for achieving substantial wins. Landing 2 scatter symbols in the base game triggers the bonus round, awarding 5 free spins. Each additional scatter that appears during base game play awards a further 5 spins (landing 3 scatters = 10 total, 4 scatters = 15 total, and so forth). Once free spins begin, the feature cannot be retriggered—you won’t gain additional spins through additional scatters during the bonus. However, the tradeoff is significant: the value counters above reels 2, 3, and 4 begin at 1 and persist throughout the entire bonus round, rather than resetting every three turns. This means each winning cascade builds upon previous builds, allowing the Stacking Symbols Feature to reach genuinely high values. The mechanics remain identical to the base game—cascading reels continue, and three or more cascades trigger the stacking system—but the persistent counters transform the bonus into a feature-building opportunity where patient play can create exceptional payouts.
For players who prefer to skip base game grinding, Feature Buy is available. This optional purchase bypasses the base game entirely and takes you directly into the free spins round, allowing you to enter the bonus feature immediately. This option suits players who specifically want to experience the bonus mechanics and feature-building potential without waiting for scatter alignment.
Our Honest Verdict
Knockout Riches stands out within the PG Soft catalogue as a mechanically sophisticated offering that successfully merges compelling narrative framing with innovative technical design. The Stacking Symbols Feature works genuinely well—it creates escalating tension during the base game and enables the feature-building gameplay that high volatility enthusiasts pursue. The 10,000x maximum win is legitimate, achievable through the persistent value system during free spins, though reaching it demands specific feature builds and extended bonus play. The 96.75% RTP sits at a competitive level for the high volatility space. The mobile-first design is evident but effective, with the reel expansion system working smoothly across devices.
The high volatility design is not incidental—it’s central to the experience. Expect extended dry spells punctuated by substantial cascades. Base game sessions between free spins can feel protracted if you’re accustomed to medium volatility releases. The 0.60 minimum bet positions the game toward experienced players with larger bankrolls, though the 180 maximum bet creates accessibility for various stake preferences. Players new to high volatility mechanics should approach cautiously, as the extended win droughts can feel frustrating without understanding the game’s design intention.
Knockout Riches is highly recommended for players who actively pursue feature-building mechanics and don’t mind managing volatility swings. It suits those who appreciate innovative systems that differentiate from template Megaways releases. Casual spinners and players seeking consistent base game action will find the pacing challenging. For seasoned slot enthusiasts with an appetite for risk and reward, this represents a genuinely worthwhile addition to PG Soft’s catalogue.
Frequently Asked Questions
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What is the RTP of Knockout Riches?
The Knockout Riches slot has an RTP (Return to Player) of 96.75% with high volatility gameplay. The game’s maximum win potential reaches 10,000x the stake, achievable through the Stacking Symbols Feature during free spins. -
What is the maximum win in Knockout Riches?
The game offers a maximum win potential of 10,000x the player’s stake, achievable through the Stacking Symbols Feature during free spins. This requires specific feature builds where the value counters on reels 2, 3, and 4 accumulate throughout the bonus round. -
Is Knockout Riches high or low volatility?
Knockout Riches is classified as High Volatility. This means players should expect infrequent wins interspersed with dry spells, but when wins occur, particularly through the Stacking Symbols feature or within Free Spins, they can be substantially larger. The high volatility design is central to the game’s feature-building mechanic. -
How do you trigger free spins in Knockout Riches?
Landing 2 scatter symbols in the base game triggers the free spins bonus, awarding 5 spins. Each additional scatter landing in the base game adds a further 5 spins. You can also use the Feature Buy option to purchase direct entry into the free spins round, bypassing base game play entirely. -
What are the main features in Knockout Riches?
The game features up to 8,000 ways to win, an Avalanche/Cascading Reels mechanic where winning combinations drop and are replaced by new symbols, and the Stacking Symbols Feature triggered by three or more cascades. During Stacking, reels 2, 3, and 4 fill with stacked copies of a chosen symbol. Free Spins mode features persistent value counters that accumulate throughout the bonus round. -
What are the bet limits in Knockout Riches?
Knockout Riches allows players to place bets starting from as low as 0.60 up to a maximum of 180, providing flexibility for different player bankrolls and risk preferences. The relatively high minimum bet positions the game toward experienced players with larger stakes. -
How many reels and ways to win does Knockout Riches have?
Knockout Riches is a 5-reel slot with up to 8,000 ways to win (not traditional paylines). The game features a unique 3-4-4-4-3 reel configuration that expands dynamically during gameplay, with centre reels capable of reaching 20 rows. The expansion mechanism allows for up to 9,000 ways to win when the Stacking Symbols Feature fully activates. -
Can I play Knockout Riches on mobile devices?
Yes, Knockout Riches is fully optimised for mobile play. PG Soft designed the game with a mobile-first approach, ensuring smooth gameplay across smartphones and tablets. The game also runs effectively on desktop devices, providing cross-platform compatibility for all player preferences.
