Double Diamond Slot Review

Double Diamond is a legendary throwback to the mechanical fruit machines of the late 1980s and early ’90s. Originally a staple on Vegas casino floors, IGT brought this classic to the digital world in 2005.

It uses its namesake as the main gameplay mechanic, doubling or quadrupling payouts, with a maximum win of up to 1,000x the stake. While the online version was later updated to HTML5 for mobile compatibility, it remains a faithful recreation of the S2000 cabinet experience.

Our Double Diamond review takes a close look to see if it still holds up after two decades of gameplay.

Double Diamond Slot Machine Overview

Double Diamond has been present in the online gaming market for over 20 years (40 years if we count its land-based origins) and is one of the easiest games to pick up and play.

It uses standard slot machine symbols, with fruits, BARs, and 7s all appearing, and it’s popular with players, even though it’s limited in terms of gameplay and aesthetics.

While it may show its age, it is still a popular game and widely seen as a trailblazer for many other slots that followed.

Game Mechanics

The layout for the Double Diamond slot is as simple as it gets. There’s a 3×3 set of reels, which harkens back to retro fruit machines. Crucially, the symbols do not always land flush on the center line—you will often see blanks or symbols half-off the line, which adds to the tension of each spin.

There’s a single payline across the middle, so there’s only one way to match symbols.

• You need to land 3 on a line to create a win.
• Cherries only need 1 symbol.
• The single payline means the volatility is low-medium.
• The Wild symbol doubles or quadruples wins when it’s involved.
• It’s missing Free Spins and base game extras.

One interesting mechanic is the “Any Bar Win,” which pays out even if you land a mix of single, double, and triple BAR symbols on the line.

Double Diamond Graphics and Playing Experience

Graphically, Double Diamond keeps things simple with classic fruit machine symbols (fruits, BARs, and 7s); however, the logo itself is the standout, featuring a distinctive faceted diamond design that glows when part of a win. The simple design helps to make these symbols timeless, and they fit in with the retro feel of the game.

I was a bit disappointed with the sounds while I was putting this review together. It’s purely sound effects when you spin the reels—expect mechanical thuds and 8-bit digital chirps—so the lack of music is a downside.

Double Diamond works smoothly on mobile devices; there’s no slowdown, and the controls are responsive. It helps that it’s a simple game with few features, and it has had an HTML5 update, which ensures it runs natively in modern mobile browsers.

Gallery

Reels and Paylines

The Double Diamond slot uses a 3×3 layout, giving it a retro feel. There’s a single payline in use, meaning all wins are created across the middle of the grid.

Because there is only one line, the game is exceptionally transparent; you always know exactly why you won or lost without checking a complex paytable.

Symbols & Payouts

Bonus Features

There aren’t any bonus rounds available in the Double Diamond slot. The only bonus revolves around the wild symbol, and it begins when it’s part of a win. Unlike modern slots, where bonuses take you to a new screen, here the bonus is integrated directly into the base game spins.

Wild Multiplier Feature

The Double Diamond logo is the key to the game’s potential. If a single wild is part of a winning line, it doubles (2x) the value of the win.

• If you manage to get 2 wilds in a winning line, it quadruples (4x) the win.
• For example, landing a 7-7-Wild combination would pay 160x your stake rather than 80x.
• 3 wilds create the top jackpot win, which awards 1,000x the stake.

Compared to Similar Slot Machines

Zeus – Although Zeus has larger reels and more paylines, it has a classic feel and it’s similar to Double Diamond.

Cleopatra – This is IGT’s other flagship title. There’s a higher maximum win here, and more bonus features, but the classic feel means this has more in common with Double Diamond than more modern games.

Mega Moolah – Another classic game that has a retro feel. It has more features than Double Diamond does, but Mega Moolah is a game that has remained popular for a long time.

Start Playing Bitcoin Double Diamond

Playing with Bitcoin gives you a range of benefits, but the biggest one is the withdrawal speed. If you land a big win, you can get access to your winnings faster than using traditional methods. Additionally, crypto allows for Provably Fair verification at certain casinos, adding a layer of transparency to the IGT math model.

As many crypto casinos are located offshore, transaction fees can often be high. International transfers cost more than domestic ones, so the lower costs are another advantage of using BTC. Bitcoin also has high levels of security, helping you to remain safe when playing Double Diamond.

Final Verdict

With nearly four decades on the market, Double Diamond has been around for a very long time. It’s straightforward to start playing and is an ideal game for players who don’t like the complexity of modern slots.

It is a “pure” gambling experience: one line, three reels, and no distractions.