Diamond Mine

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stars stars stars stars grey stars 4 / 5
Reviewed by: Emily Warren Linkedin
07.07.2025
Diamond Mine is a slot that first saw the light of day in May 2018 and comes from the game provider Blueprint Gaming . It is a British game manufacturer that creates games for both online and land - based casinos.
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Several of their slots are found in renowned casinos throughout New Zealand, such as Unibet, Betsson, and Bet365. In Diamond Mine, we delve into the mines and attempt to find substantial payoffs. Profits from mine themes are not new, but thanks to the MegaWays concept, Diamond Mine stands apart in that particular crowd. This implies that there are no set ways to win, yet it is sufficient for the symbols to conclude on connecting lines to yield a payoff. In the center rows, there are four extra symbols that, together with the rest of the symbols, make up each spin. Furthermore, those four symbols can, together with the center spin on the wheel, achieve additional winning combinations.

Diamond Mine Castle

About Diamond Mine

Upon first glance, Diamond Mine seems like a straightforward slot machine. It sports a simple gray and brown color scheme, with uncomplicated symbols that fit the otherwise dull miner theme. Yet this is not just a simple slot. It is created by the gaming company Blueprint, which has a reputation for making games with really high winning chances. This one gives you the shot to win several times during your play because it features falling symbols. These are not your average falling symbols, either. The special feature of the game, known as MegaWays, actually allows for a huge number of different winning combinations—117,649, to be precise. That number and the fact that it could be a way to handle one of the best slots like this in an online casino are reasons enough to me to check out this game.

Bets and paylines

Diamond Mine has a setup of six fixed reels. The number of symbols appearing on each reel range from two to seven, which is a part of the MegaWays you see in action with each spin. The MegaWays give you a chance at seeing the maximum number of possible paylines with every single reel arrangement. There are two ways, however, that you can get even more symbols during play: 1. Extra Symbols on the Reels. These can appear anywhere on reels two through five, so you definitely can get a lot more symbols appearing in a lot more ways in a MegaWays setup. 2. Exploding Symbols. This is actually what happens during a win, and these explosions leave room for new symbols to drop down, as if the symbols were part of a silvery rain or a part of an avalanche on the mountain. You can win several times in a spin, using the same symbols in a line as the reason for the win.

When you start up Diamond Mine, you will see what bet you are playing with to the left of the playing field. It is normally preset at $2 on per spin but you change this easily with the arrows. The minimum you can play per spin is 20 cents and the maximum 100 dollars. This means that the slot is suitable for both those who play for pleasure and high rollers who want a chance at the highest winnings. You can change your bet at any time during the game, for example, to match your remaining balance. At the bottom, you will see at all times how much money you have in your game account as well as how much you managed to win on a single spin. Here you can also see how many MegaWays you won.

Our Rating
Bonuses
81%
Graphics
85%
Entertainment
84%

Game information
Games 2018
Max profit 250 000 coins
Reels / paylines 6 / 117 649
Theoretical payback-RTP 96.4
Coin value Not current
Total effort 2 - 1 000
Volatility N / A
Free spins Yes
Bonus features Free spins, multiplier, scatter, TNT

Symbols

In Diamond Mine, the symbols are designed to represent the mining theme. They include a... bearded miner and a sparkling diamond! (You just have to laugh!) The rest of the symbols consist of classic card symbols ranging from the number 9 to ace. (The things dynamite will make for you!) The 9 is the symbol that pays the least, and then all the other cards pay more and more in ascending order. The next group of symbols that I... found they're called "premium symbols," meaning they pay well, and they're... designed to look good and represent the theme. They include a lamp and two crossed shovels. (Allegedly, a good shovel and a good lamp will help you find diamonds. I suspect that's not true.) These two give a payout of x2 your bet... if they're on three of a kind on the reels. Then come the bearded miner, who gives the second highest payout of 7.5 times your bet, and the big diamond that gives a full 50 times your bet!

A sack filled with gold is another symbol to keep your eyes peeled for. If you land at least four of these anywhere on the reels, you'll be rewarded with 12 free spins. And if you happen to see them in the bonus mode, at least three appearing on the top row can also reward you with even more free spins. There's also a wooden barrel with the letters TNT on it that can deliver a so-called Mystery win. This explodes and transforms into a randomly selected symbol that can help boost your bankroll. And let's not forget about the wild. It's a collapsed bomb that, by the way, replaces all other symbols except for the scatter in your quest for the best possible Payline.

Bonus features

Triggering the game's free spins involves having four or more gold sacks on the reels. When this occurs, the player is gifted with 12 free spins that mimic the way the base game operates. The crucial differentiating factor, however, is that during the free spins, there exists an unlimited multiplier that increases with every Payline that is made. This means that if the very first spin wins 10 times in a row, there is at least a 10x multiplier situation going on. Another aspect of the free spin bonus round is that it's possible to gain additional free spins within the bonus round under certain circumstances, rendering the free spins potentially endless. Regardless of how difficult it is to say how high the multipliers can go during the bonus round,

The specific bonus feature for the slot that can help you get really good wins is the wooden barrel that says TNT. This is a Mystery win that transforms into a randomly selected symbol when it appears on the playing field. Let's say you have a playing field half filled with aces and half filled with barrels. Then these barrels can explode and be transformed into Aces, which means that you fill the playing field with one and the same symbol. Finally, there is also a wild symbol that can appear both during the bonus and in the base game. This acts as a substitute for all other symbols except the free spins symbol. This means that, like the barrel, it can help you fill the playing field with one and the same symbol.

Play Diamond Mine at casino

A number of online casinos have added the exciting slot to their game selection. Here, we list some of the most popular online casinos that have the game in their game portfolio.

Diamond Mine casino

Summary

Diamond Mine is an imaginative and thrilling slot that, in spite of its uncomplicated nature, offers no shortage of entertainment. And that’s primarily because of the MegaWays setup, which gives you way more opportunities to win than an ordinary game would. You’re still able to place modest bets, like 20 cents per spin—so, y’know, it also affords you the ability to play without going bankrupt after an hour. Which is good, because the highlight of this game is when you enter bonus mode and get access to an unlimited multiplier. So if you, say, land a 20x multiplier on, like, the first or second spin in that mode, you can pretty much count on your subsequent spins to be very rewarding.

In theory, Diamond Mine is a slot that can yield very high payouts invariably. That said, it also boasts a hefty level of volatility, which basically means it can and does pay a lot but just as easily doesn’t or refuses to pay anything at all for far too long. You could easily find yourself spinning the reels several times in succession and winning nothing at all, but don’t be too shocked or saddened if that happens, Hurst said. Just remember that if you keep your head clear, and with a little luck, you can also snag a big win even in the base game.

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