Microgaming has teamed up with Triple Edge Studios, commissioning the studio to produce a new game that’s exclusively available to Microgaming owned online casinos. This isn’t a new situation for the veteran provider, who seems to prefer taking a high level approach these days. Diamond Inferno comes with unstable paylines that increase from 20 up to 50 when subsequent wins occur. There’s no Free Spins game on offer, which is bound to generate a few frowns, but it does have a win potential of up to 11,750 times the stake. Let’s see how this is achieved without any true top game.


  • The Multiplier Trail goes all the way up to 10 x
  • Free Re-spins are triggered on every winning spin
  • The possibility of very big wins
  • Diamond Inferno slot is available to players in Canada
  • The possibility of very big wins
  • It’s not too easy to climb the Multiplier Trail
  • Gameplay can become a little repetitive
TYPE Video Slot
REELS AND PAYLINES 5 Reels, 20-50 Paylines
GAME FEATURES Wilds, Scatters, Free Spins, Re-spins, Increasing Paylines, Diamond Scatter Wins, Multiplier Trail
RANGE OF BET 0.20 - 20.00
COIN VALUES 0.01, 0.02, 0.05, 0.10
MAXIMUM WIN 11,750 x your bet
PAYOUT 96.19%

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What is the theme of Diamond Inferno slot?

Although Diamond Inferno is technically a slot by Microgaming, it actually comes through Triple Edge Studios. The game’s theme isn’t going to blow you away, as the studio has decided to trial their very first interpretation of a classic slot. The old school visuals give the game a definite retro feel, but the special features break this image apart by adding layers of excitement and deviating away from the tedium that usually comes with the original style of slot game.The reels are set over a backdrop that can only be described as a mass of lapping flames. The background music is surprisingly pleasant, and I was happy to allow the guitar riffs to play on in the background as I spun the reels.

Across the reels are mainly traditional slot symbols. You’ll find dice, dollar signs, bars, lucky sevens, and stars standing in as the premium, high-paying symbols. On the other end of the scale, the low-paying symbols are a foursome of Kings, Queens, Jacks, and Aces. The set is completed by a single, glittering Diamond Scatter that will pay out the most if you can land enough of them on the reels in a single spin.

How to play Diamond Inferno slot

Diamond Inferno comes with two special features, but sadly neither of these are a Free Spins game. Luckily, the game’s existing features trigger very frequently, keeping you entertained despite the lack of a proper bonus game. Here’s what you’ll get to experience.

Diamond Inferno Expanding Reels

Expanding Reels

Each win will expand the reels by one row and grant a free re-spin. Not only this but each win will add 10 extra pay lines, expanding the grid as you go. The maximum is 6 rows when fully expanded, and you achieve this by landing consecutive wins. At the very top, you’ll be playing over 50 lines, all for the price of one spin. During this process the Diamond Scatter comes into play. If it lands on the middle three reels you’ll get paid out according to how many paylines are in play:

  • 1 x on row one
  • 2 x on row two
  • 4 x on row three
  • 6 x on row four
  • 10 x row 5
  • 20 x row 6

These values are increased further if you trigger them while the the Multiplier Trail is active, and we get into more detail about this next.

Diamond Inferno Multiplier Trail

Multiplier Trail

When you have fully expanded the reels (i.e. with all 50 paylines in play), the re-spins will suddenly be accompanied by an Increasing Multiplier. The multiplier grows after the spin that fully expanded the reels. It starts at 2 x, then 3 x, 5 x and 10 x. Once you hit 10 x, all subsequent wins will be multiplied by this number. Keep in mind that to continue acquiring wins, you’ll need to consistently land winning spins in sequence — not something that will be easy to achieve after the initial two or three wins.

What is the RTP on Diamond Inferno slot?

The RTP for this game is 96.19%, so no complaints there. It means that players can expect a decent payback, but this should only really be a factor if you’re in for a long spinning session. The highest possible payout for this slot is 11,750 times your total bet which is more than generous and really give you something to spin for. Considering Diamond Inferno’s limited features, the game offers exciting pay out potential.

All wins pay left to right. The only exception to this rule is the Scatter symbol, which can be triggered in any patters. The game kicks off with a 5×3 grid that runs on 20 paylines. Throughout the game all symbols can land single or stacked, which goes a long way to boosting your chances of forming winning spins. And you really do want those winners to come along frequently, because it’s the only way you can dig into the very rewarding re-spin and multiplier features. The symbols themselves aren’t the most valuable out there, but they provide sufficient prize potential:

  • The Star is particularly valuable at 100 x the bet
  • The Sevens are worth 6 x
  • The Bar is worth 4x
  • The Dollar sign is worth 2.75 x
  • The Dice is worth 2.25 x
  • The card values range from 1.75 x down to 1.25 x for a full line

Should I play Diamond Inferno slot?

Diamond Inferno 320 x 320

Final Verdict

Diamond Inferno


The best thing about Diamond Inferno is that any win grants a free re-spin. And because these re-spins are paired with multipliers, the game offers an exciting base game to rival even the most successful slot games. When you’re in play you really want to cross all your fingers and toes for a series of wins, as each win will attribute a larger multiplier and better prizes. This game was a bit of a surprise. I went into it expecting to dislike it because of its lack of a proper bonus game. Surprisingly, the fact that you get to re-spin every winning spin with the addition of multipliers makes for a more frequent and often more rewarding alternative to a traditional Free Spins round. Diamond Inferno puts a new spin on the notion of ‘burning money’.

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