Knockout Riches

Knockout Riches Slot Review: PG Soft Swings for Cluster Chains

Knockout Riches is a boxing-themed video slot from PG Soft, released in April 2025, built around a stacking symbols mechanic that rewards players for stringing together consecutive cascades. It's a 5-reel game offering up to 8,000 ways to win, a maximum payout of 10,000x the stake, and a well above-average RTP of 96.75%.

Theme and gameplay feel

The boxing ring setting gives Knockout Riches a punchy, high-energy presentation, with each round building momentum in a way that mirrors the sport itself — start steady, then look to land the knockout blow. Symbols lean into the sporting theme, mixing boxing gloves, title belts, and fighter iconography with higher-value stacked icons that do most of the heavy lifting once the free spins begin. The visual presentation is sharp and typically polished for a modern PG Soft release, keeping the pace brisk between cascades.

Landing three cascades in a row during the base game triggers a stacking symbols effect, giving players an early glimpse of the bigger potential that's fully unleashed once the free spins round kicks in.

Free spins and stacking mechanic

During the free spins feature, stacked symbols accumulate and activate at the end of the bonus round, meaning the longer the momentum builds, the larger the potential payout. Get enough symbols stacking in the right places and players can unlock the full 8,000 ways to win, putting the 10,000x max payout within reach.

What the RTP means for you

At 96.75%, Knockout Riches sits well above the average return to player for online slots, which is a genuinely positive sign for long-term value. Combined with high volatility, it's built for players who don't mind waiting through quieter spells for the cascades to really get going.

Volatility and max win potential

This is a high-volatility release, so expect winning spins to be spaced unevenly, with the real upside concentrated in the free spins bonus. The 10,000x ceiling is a serious number, giving the game genuine appeal for players hunting a big single-session result rather than a steady trickle of small wins.

Betting range

Stakes on Knockout Riches run from 20p up to £100 per spin, giving a wide enough spread to suit conservative and aggressive playing styles alike.

Verdict

Knockout Riches is a solid, well-paced entry in PG Soft's catalogue, using its stacking symbols mechanic to build genuine tension between the base game and the free spins bonus. With a strong 96.75% RTP and a 10,000x max win on offer, it's well worth trying the free demo at johnessyslots to see whether the escalating cascade structure clicks with your playing style.