2018 is the year of retro slots! Gaming developers have been bringing back the magic of old fruit machines like a red rag to a zeitgeist. Symbols filled with Cherries and Bars are becoming commonplace, yet with each release we’re still seeing new spins and twists. This is exactly the case with NetEnt’s Double Stacks Slot game, a fruity outing which makes a name for itself due to its stacked symbols and chances to win 1,000 times our stake on each free spin. It’s certainly a new (and more enjoyable) way to get your five-a-day.


While Double Stacks may have firm roots in the old style of fruit machines, this is definitely one slot that you wouldn’t find in a local pub. That’s mainly due to the bright neon visuals that would no doubt deter the regulars. However, for slot players, the lights are alluring and inject the game with that extra wow factor. Or the X Factor, if you will. The main symbols include Plums, Lemons, Cherries, Watermelons, Bells, Lucky Sevens, Bars and Diamonds. They all flash in front of the screen when they form part of a winning combination, but the real magic is when the Disco Ball Scatter appears. The music changes and we can get our funk on as we enter the bonus rounds.

The stacked symbols are the key focus of this slot. Symbols that match can duplicate, activating the Double Stacks feature which allows for more combinations to be made and more wins to be won. This makes the gameplay faster and frenetic as we see fruity symbols splat up on screen before transforming into a sticky stacked symbol. All the action takes place bathed in glorious neon colours with a soundtrack that George Clinton would be proud of.


When stacked symbols land on a reel, the Double Stacks feature activates. All the symbols on the reel then double up, giving us more winning combinations. If the reels fill with the highest paying symbol, the Diamonds, they double up and can reward us with 1,000 times our stake. We trigger the Free Spins feature when the Disco Ball Scatter appears three, four or five times anywhere on the reels. Our reward is 5, 15 or 30 free spins. During these spins, we can use the Double Stacks feature as well as re-trigger the spins by landing two to five additional Scatters. Throw the Diamonds into the equation and there’s never been a jackpot so juicy.


Not everybody loves fruit, we get that. But when we can get a healthy dose of fruit that gives us more than just a vitamin boost, we’re naturally intrigued. Double Stacks definitely fills our fruity needs with its retro graphics, and then gives our balance a nice healthy check with the Double Stacks and Free Spins features. As the Double Stacks mechanism runs throughout the base game and the free spins, it really is the fruity gift that keeps on giving.

Double Stacks Slot Details

Developer Paylines Reels Min Bet Max Bet Min Coins Max Coins RTP(%) Jackpot Released
blank 10 5 0.1 200 1 10 96.1% 20,000 2018