Diamond Mine Megaways at SpinBuddha: Free Play & Bonus
Blueprint Gaming’s first Megaways title lands at SpinBuddha with the full 96.43% RTP build, part of the casino’s 6,000+ game library from 105 providers. This 2018 release set the template for every Blueprint Megaways slot that followed, pairing Big Time Gaming’s licensed engine with an uncapped free spin multiplier that has driven community wins past 700x stake.
Technical specs
| Parameter | Value |
|---|---|
| Provider | Blueprint Gaming |
| RTP | 96.43% (default) |
| Volatility | High |
| Min/Max bet | £0.20 / £100 |
| Max win | 10,000x stake |
| Reels/Rows | 6 variable + horizontal tracker |
| Ways | Up to 117,649 |
| Release | May 2018 |
Game mechanics
Each of the six main reels spins 2 to 7 symbols high independently. A horizontal tracker above the middle four reels adds extra symbols. Ways recalculate every spin as the product of symbol counts, peaking at 7^6 when every reel lands seven high. Wins pay left to right from reel one, any position.
Cascading reactions remove winning symbols and drop new ones from above. In the base game each cascade pays at 1x. In free spins each cascade increments a multiplier by +1 with no upper limit and no reset between spins. That mechanic alone accounts for the bulk of recorded big wins.
TNT barrels are mystery symbols. When the spin settles, every barrel on screen reveals the same randomly chosen paytable symbol before win evaluation. A screen full of barrels can force five or six of a kind where none existed a moment earlier.
Latest Big Wins
Bonus features
Four or more golden bag scatters trigger free spins: 12 spins for four scatters, plus five extra for every scatter beyond that. The multiplier starts at 1x and climbs by one with every cascade win during every free spin. The multiplier never resets until the feature ends.
Community tracking puts the average bonus round at 129x stake. The longest multiplier observed in tracked play reached 719x. Trigger frequency sits around one in 591 spins, rarer than most Blueprint Megaways releases that followed.
🎯 Expert Tip: the 10,000x ceiling is almost never reached in base play. Extended free spin runs with multipliers above 100x are the only realistic path to four-figure payouts.
Bonus Buy
Diamond Mine Megaways does not offer a bonus buy option. The UK ban on feature purchases arrived shortly after this title launched, and Blueprint did not retrofit the mechanic. If you want guaranteed free spins from the outset, the studio later published Diamond Mine Extra Gold Megaways with a Golden Bet stake multiplier and Diamond Mine All Action Megaways that skips the base game entirely.
Versions and Variations
Blueprint has released six titles in the Diamond Mine series. Diamond Mine 2 Megaways cuts RTP to 95% but raises the ceiling to 50,000x. Diamond Mine Extra Gold Megaways adds the Golden Bet feature for direct bonus entry at 50x stake. Diamond Mine All Action Megaways removes the base game and goes straight to free spins via buy or gamble, designed for non-UK markets after the buy ban. Diamond Mine Boost Megaways and the Jackpot King variant add progressive pots.
Operators can deploy the original at four RTP settings: 96.43%, 94.50%, 93.00%, or 92.01%. SpinBuddha runs the default 96.43% build. Check the in-game info screen if you play this slot elsewhere, the same UI can present materially different math.
Casino integration
SpinBuddha’s tiered weekly cashback applies to Diamond Mine Megaways sessions. Losses on this slot count toward the 5% to 25% rebate tiers with just 1x wagering, returning up to €1,250 per week at the top standard level. VIP players at Platinum tier (€10,000 total deposits) add 8% instant rakeback on every spin.
The casino processes crypto withdrawals within 24 hours, useful when a long free spin run lands. Test the unlimited multiplier in demo mode, then use SpinBuddha login when you want the cashback to apply.
Free Slots
