


RTP
95.1%
Volatility
High
Max Win
5,000x
Diggin' for Diamonds - The Big Bonanza is a high-volatility online slot from Yggdrasil with an RTP of 95.10% and a maximum win of 5,000x.
Page updated July 2026
Yggdrasil's Diggin' for Diamonds – The Big Bonanza sends players down a sparkling mine shaft on a 5-reel, 3-row grid running 25 paylines, dressed up with cascading wins and escalating multipliers rather than a static paytable.
Tunnels, pickaxes, ore carts and glittering gems fill out the reels, and the presentation leans into a well-worn but well-executed treasure-hunting aesthetic — polished animations accompany every cascade, and multiplier values climb visibly as wins stack up mid-sequence. When a winning combination lands, the involved symbols clear and new ones tumble in to fill the gaps, giving each spin the chance to chain into a longer combo before the reels settle. A Side Bet option sits alongside the core game for players who want to tilt the odds of triggering the bonus round.
A 95.1% RTP puts this comfortably within typical modern slot territory — not the most generous figure on the market, but not stingy either. Over the long run it means the game is built to hand back a fair chunk of what's wagered, though as with any slot, short sessions can swing well above or below that average, and the presence of the Side Bet option is worth factoring into how you budget your stake.
Yggdrasil has classed The Big Bonanza as high volatility, and the design supports that rating: cascades and modifiers exist to build toward bigger, less frequent payouts rather than a steady drip of small wins. Players who prefer regular top-ups to their balance may find the quieter spells testing, but those chasing a properly stacked multiplier chain will feel right at home once a cascade gets going.
The maximum win sits at 5,000x the stake, reachable through the free spins round where scatter-triggered bonus rounds bring enhanced multipliers into play alongside the cascading mechanic. Bets run from €0.20 up to €100 a spin, and a bonus buy option is available for players who'd rather skip straight to the free games than grind for the trigger naturally, with retriggers able to extend the round further once inside it.
Diggin' for Diamonds – The Big Bonanza is a solidly built cascading slot that does the mining theme justice without overcomplicating the mechanics, and the escalating multiplier system gives it real teeth once a session gets rolling. If chain-reaction wins and a well-presented treasure-hunt setting appeal, it's well worth spinning the free demo at johnessyslots before committing real stakes to the high-volatility action.
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Diggin' for Diamonds - The Big Bonanza has an RTP (return to player) of 95.10%. RTP is the theoretical percentage of total stakes a slot returns to players over a very large number of spins, as published by Yggdrasil — individual sessions can land far above or below it.
Diggin' for Diamonds - The Big Bonanza is rated high volatility. High-volatility slots pay out less often, but wins tend to be bigger when they land — expect longer dry spells and larger swings to your balance.
The advertised maximum win for Diggin' for Diamonds - The Big Bonanza is 5,000x. Max wins are extremely rare by design — treat them as a ceiling, not an expectation.
Diggin' for Diamonds - The Big Bonanza is developed by Yggdrasil and was released in Feb 26, 2024.
Diggin' for Diamonds - The Big Bonanza plays on a 5×3 grid with 25 paylines.
Verified Data via Johnessy AI