Return to player
96.43%
Minimum stake
0.20
Slot format
Video Slots
Volatility
High
Number of reels
6
Progressive jackpot
No
Popularity indicator
Maximum stake
100
Studio
BluePrint Gaming
Bonus features
Yes
Paylines
117
Theme
Adventure
Diamond Mine online slot review
BluePrint Gaming’s Diamond Mine offers 117,649 ways to win, with a different configuration possible on each spin. Randomly sized symbols create between 2 and 7 symbols per reel, while cascades, free spins and mystery symbols contribute to its payout features.
Theme and Storyline
Mining is a familiar theme in online slots, but the review notes that it remains popular. Diamond Mine follows a miner searching for riches, with players helping him uncover them as they pursue their own potential win.
Graphics, sound and animation
Diamond Mine’s visuals may not be award-winning, but the review describes them as reasonably polished and easy on the eyes. It also says the slot is optimised to run smoothly across a wide range of devices; that is not a performance guarantee.
Cactuses and rocky mountains fill the backdrop where the miner hopes to find diamonds. The reels represent the mine, with colourful, relatively simple symbols. Animation is mostly limited to spinning reels and cascading symbols that burst after a win.
The soundtrack has a strong country feel, with the miner’s pick chipping away at rock in the background. Players can mute all audio if they find it distracting.
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How the game plays
Diamond Mine’s gameplay varies from spin to spin thanks to cascading symbols, a 6x7 reel layout, stacked symbols, the Megaways feature and variable symbol sizes. That last mechanic is central to the format: one reel may show as few as two symbols, while another may show as many as seven.
Together, these mechanics can create up to 117,649 ways to win on one spin. A winning combination needs the same symbol on at least three consecutive reels, starting from reel 1. More matching symbols mean a larger payout. When a cascade removes a winning combination, new symbols fall into the gaps, potentially forming another combination.
Diamond Mine has 12 standard symbols, and the Diamond has the highest standard payout. A 6-symbol combination pays 50x the total spin bet; a 5-symbol combination pays 25x. Payouts are 10x for 4 symbols and 5x for 3. The Diamond alone also pays when it appears 2 times, awarding 2x.
The miner, lantern and pickaxe/spade pairing are the other high-paying symbols. Lower-value symbols are the A, K, Q, J, 10 and 9 playing-card icons.
The ‘Dynamite’ symbol is Diamond Mine’s wild, substituting for every symbol except the ‘Sack of Gold’ scatter.
Bonuses and free spins
Diamond Mine’s main bonus is its free spins round, triggered when at least four ‘Sack of Gold’ bonus symbols appear anywhere in view. Four symbols award 12 free spins, and each additional symbol on the triggering spin adds 5 more.
During free spins, the win multiplier can keep increasing, with no stated upper limit. It begins at 1x and rises whenever a spin wins; further cascade wins increase it again. Landing three or four ‘Sack of Gold’ symbols on the top reel awards another 5 or 10 free spins, respectively.
The Mystery Symbol feature is available in both the base game and free spins. ‘TNT Barrel’ symbols, which usually appear stacked, explode and turn into the same randomly selected reel symbol, potentially creating further wins.
Bet Sizes, RTP and Variance
With its reel setup and 117,649 possible paylines per spin, Diamond Mine keeps betting simple. Players cannot select individual paylines or adjust coin amounts and values; they choose a total stake of 0.20 to 100.00 per spin.
Diamond Mine is listed with a 96.43% RTP and high variance. The review says this profile may mean payouts arrive less often than in many other slots, while occasional returns can be larger. It may therefore suit players who practise sound bankroll management and are willing to be patient.
Conclusion
Evan Carrington’s review describes Diamond Mine as an entertaining video slot with several possible routes to a payout. The free-spins feature, with its potentially rising multiplier, is the main attraction; cascades, changing reel sizes and wilds add variety to the play.
Evan Carrington brings more than 12 years of experience in the iGaming industry, with a focus on reviewing online casinos, assessing slot games and examining player safety. Their work covers casino licensing, RTP, volatility, bonus terms and withdrawal policies. Drawing on practical testing and independent research, Evan provides clear, evidence-based reviews to help players understand gambling platforms, their features and possible risks.
