Double Stacks is a vibrant and classic fruit-themed online slot by NetEnt, designed to deliver retro charm with a modern twist. With its neon visuals, stacked symbols, and powerful Free Spins round, Double Stacks blends the simplicity of old-school slots with the excitement of contemporary features. Its straightforward gameplay and decent volatility make it a solid choice for both casual players and seasoned slot fans.
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Game Overview
Double Stacks is played on a 5-reel, 3-row grid and offers 10 fixed paylines. Although the setup is relatively simple, the game introduces exciting features such as double symbols, stacked icons, and a lucrative Free Spins round. The maximum win potential is up to 1,000x your stake, with medium volatility and a smooth gaming rhythm that suits all player types.
Theme and Visual Design
The game captures the essence of a Las Vegas slot machine with its dazzling neon design and glowing fruit symbols. The background glimmers with animated lights, giving it a lively, arcade-style atmosphere. While the theme sticks to a classic casino vibe, NetEnt adds polish and detail that elevate the visual appeal.
Symbols include traditional fruit machine icons such as cherries, melons, lemons, and plums, alongside higher-value symbols like diamonds, sevens, and golden bells. The entire aesthetic is sleek, colorful, and visually engaging without being overwhelming.
Double Symbols and Stacking Feature
One of the unique mechanics in Double Stacks is its Double Symbols feature. High-paying symbols (such as diamonds, sevens, bells, and bars) can appear as double icons, allowing up to 10 symbols to land on a single payline — instead of the usual five. This boosts payout potential significantly, especially when these symbols stack on the reels.
The Stacking Feature applies to all symbols, meaning they can land in full vertical stacks on the reels. When combined with double symbols, it becomes possible to fill the screen with matching high-paying symbols, triggering the game’s biggest wins.
Wild Symbols
The Wild symbol is represented by a colorful glowing “WILD” icon. It substitutes for all other symbols except the Scatter, helping players complete winning combinations. Wilds appear frequently in both the base game and Free Spins, often contributing to multiple-line wins, especially when paired with stacked and double symbols.
Free Spins Feature
The Free Spins round is triggered by landing three or more Scatter symbols (represented by a shining star) anywhere on the reels:
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3 Scatters = 5 Free Spins
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4 Scatters = 15 Free Spins
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5 Scatters = 30 Free Spins
During Free Spins:
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All high-value symbols are guaranteed to appear as double icons
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This boosts the odds of landing full-screen, high-paying combinations
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Additional Free Spins can be retriggered by landing more Scatters
This bonus round offers the highest win potential, especially when stacked double diamonds or sevens dominate the reels.
Paytable and Symbol Values
The highest paying symbol is the diamond, followed by the lucky sevens, golden bells, and bars. Landing 10 double diamonds on a payline yields the game’s top payout. Lower-paying symbols include classic fruits like watermelons, lemons, and cherries, which balance out the win frequency.
The paytable is straightforward and favors players who understand traditional slot mechanics, making it accessible to new users.
RTP and Volatility
Double Stacks offers a Return to Player (RTP) rate of 96.1%, which is competitive within the online slot market. The game’s medium volatility ensures a balanced mix of moderate wins and extended playtime without long dry spells or high-risk gameplay.
This RTP-volatility balance is ideal for players who prefer steady engagement with chances for sizable payouts, especially during the bonus round.
Mobile Experience
Optimized for both desktop and mobile play, Double Stacks performs flawlessly on iOS and Android devices. The responsive interface, crisp visuals, and intuitive controls ensure a smooth experience across screen sizes. Whether spinning casually on a phone or grinding for Free Spins on a tablet, the game retains its full visual charm and feature set.
