10000X Gold

Developed by 4ThePlayer in partnership with Yggdrasil, 10,000x Gold takes clear inspiration from the studio's earlier 5 Wild Buffalo release and channels that same high-stakes energy into a gold-and-glamour presentation. It's a five-reel, four-row slot offering 1,024 ways to win, built around a Stack Xpand mechanic and a tiered set of climbing prizes sitting above the reels.

Stack Xpand explained

Wins form when matching symbols land on adjacent reels from left to right, with Bonus Scatters, wild multipliers and Coin symbols all playing a role in triggering the game's various bonus elements. The Stack Xpand feature is the centrepiece: when four X symbols land fully stacked on a single reel, they merge into one oversized X symbol carrying a random multiplier between 5x and 10x. If stacked Xs also appear on neighbouring reels, those multipliers combine multiplicatively rather than simply adding together, a 10x sitting next to a 5x becomes a 50x multiplier applied across that section of the grid, which is where the game's biggest swings tend to come from.

The five Fortune Prizes

Above the reels sit five separate Fortune Prizes that grow throughout play: Mini starts at 8x and climbs to 100x, Midi runs from 12x up to 200x, Super starts at 100x and reaches 500x, Mega begins at 300x with a 1,500x ceiling, and Ultra starts at a hefty 1,000x, maxing out at 5,000x the stake. Landing Coin symbols on any reel feeds these prize values upward, giving the base game a persistent sense of progress even between bigger Stack Xpand hits.

RTP, volatility and betting range

Presentation-wise, 10,000x Gold goes for a sleek, gold-plated, high-stakes-game-show aesthetic, bold, metallic, and paced with pulsing audio to match the volatility underneath. Betting runs from 0.2 up to 120 per spin, a genuinely wide range that caters to both cautious players and serious high rollers, and the game returns an RTP of 94.0% with volatility rated high, reflecting the multiplicative Stack Xpand system and the five climbing Fortune Prizes. The maximum win sits at 7,500x the stake, a strong but not extreme ceiling, especially given how quickly multiplicative Stack Xpand combinations can escalate once several stacked reels line up in the same spin, and given that the top Ultra Fortune Prize alone can contribute 5,000x on its own.

Final take

For players who enjoyed 5 Wild Buffalo or simply want a high-volatility slot with a genuinely distinctive multiplier-stacking mechanic, 10,000x Gold delivers plenty to chase across both the base game and its five-tier prize ladder.

Curious how quickly Stack Xpand can multiply across the reels? The free demo of 10,000x Gold at johnessyslots is the best way to watch the Fortune Prizes climb and the X symbols combine before deciding whether to chase that 7,500x ceiling for real.