Knockout Riches (PG Soft) – Slot Review

Knockout Riches delivers a high-energy boxing-themed slot experience set in the heart of a championship arena. The game blends intense sports action with a vibrant, animated art style, featuring premium symbols like gloves, headgear, punching bags, and a fierce female boxer. With a pulsating soundtrack and ring-side visuals, every spin feels like a round in a title fight. The slot’s mechanics—such as stacking symbols, dynamic reel transformations, and knockout-style features—complement the theme perfectly, creating a gameplay atmosphere that mirrors the tension and triumph of a big boxing match.
Knockout Riches features a 5-reel, 4-row layout with a massive 8,000 fixed paylines. This high-volatility slot comes with a solid RTP of 96.75% and offers players the chance to win up to 10,000x their stake. Bet sizes range from £0.20 to £100.
Knockout Riches Symbols & Pay Table

The game includes a total of 12 symbols. Low-paying symbols consist of 10, J, Q, K, and A, while premium symbols include Mouth Guards, Boxing Gloves, Headgear, Punching Bags, and a Female Boxer—the latter being the highest-paying symbol. The Wild symbol substitutes for all regular symbols and appears only on reels 2, 3, and 4. A Scatter symbol is also present, playing a key role in triggering free spins.
Knockout Riches Features & Mechanics
Stacking Symbols Feature
The Stacking Symbols Feature is activated during any spin that reaches the third round or later. At the end of the third round, values above reels 2, 3, and 4 are set to 1. From the fourth round onward, landing winning symbols on these reels increases their respective values based on the number of winning symbols on each reel. At the end of the spin, reels 1 and 5 transform into a single, randomly selected symbol (excluding Wilds and Scatters), while reels 2, 3, and 4 are stacked with the chosen symbol according to the stored reel values. Each reel can hold up to 20 stacked symbols.
Free Spins Feature
Landing 2 Scatter symbols triggers the Free Spins Feature, awarding 5 free spins. Each additional Scatter grants 5 more free spins. At the beginning of the bonus round, the values above reels 2, 3, and 4 are again set to 1. As in the base game, wins on these reels increase their respective values. At the end of the free spins round, reels 1 and 5 transform into a randomly selected symbol, and reels 2–4 are stacked with that symbol according to their accumulated values. The feature can be retriggered for additional free spins.
Conclusion
Knockout Riches packs a serious punch with its fast-paced gameplay and unique boxing-inspired mechanics. The stacking symbols and reel-transforming features bring a fresh twist to traditional slot action, keeping each round engaging and full of knockout potential. Visually slick and thematically consistent, the game captures the intensity of the boxing world while offering players a shot at impressive rewards. However, its high volatility and focus on building features over time might not appeal to casual spinners. Be sure to try out this game on launch and check out our exclusive casino offers.