In this review
Diamond Link - Mighty Emperor Slot by Greentube
Updated: 22.07.2025
Reviewed by: Ella Houghton
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Release Date:22.06.2021
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Volatility:
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RTP:95.0%
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Multiplier:No
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Max. win:1,250x
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Bonus game:No
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Free spins:Yes
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Scatter Symbol:Yes
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Wild symbol:Yes
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Symbol Stacked:No
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Jackpot Game:Yes
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Slot lines:25
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Slot reels:5
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Layout:5-3
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Stakes range (€/£/$):0.25 to 100
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Slot Theme:Oriental, Asian
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Technology:JS, HTML5
Licensed and tested by
The new Diamond Link – Mighty Emperor slot machine is the embodiment of the legend of a kingdom that shines and sparkles like a diamond. Open the gates to this mystical place! Decorative koi, sacred pagodas, and much more all support the overall Asian vibe. 4 progressive jackpots can be won in this stellar game from the leading provider Greentube - Mini, Minor, Major, and of course Grand. What's more, there are 3 spin features, each of which only requires 1 of the special symbols to activate - all guaranteed winning spins that don't require you to wager!
RTP & Volatility
The slot's mathematical model is well balanced. The RTP is 95% and the volatility is medium, so wins won't be long in coming, but the game will still keep you on your toes.
Gameplay
Mobile compatibility
Diamond Link - Mighty Emperor Bonus Features
Game Symbols
The Wild symbol pays up to 3,000, Emperor pays up to 3,000, Koi pays up to 600, Gold Coin pays up to 600, and Red Sailing Ship pays up to 300. The low-paying symbols are the stylized suits of playing cards: Ace pays up to 200, King pays up to 120, and Queen pays up to 120.
Bonus Rounds & Free Spins
Free Spins Feature
When 6 diamonds have been successfully collected, the Diamond Link feature is activated. This gives 3 free spins, during which each subsequent Diamond that falls on the playing field is fixed, and the free spins counter is reset to 3.
If a Wild Spin Scatter appears on the reels, you will be eligible for a free spin with a guaranteed win! During this spin, a random number of Wild Symbols, randomly distributed across the playing field, helps to form winning combinations.
When the Scatter with the Sticky Spin logo comes into view, a free spin occurs that ends with a guaranteed win. All winning symbols are locked in their positions and the reels spin again. This happens until the entire set of reels is filled with a winning combination.
To activate the Colossal Spin feature, a Scatter symbol must appear on the reels displaying the Colossal Spin logo. This is followed by a free spin, which leads to a guaranteed win, during which a Giant symbol is displayed on the 3 middle reels, which covers the positions of the 3x3 reels, and all other reels spin again.
Bonus Round
This slot machine has a Diamond Link jackpot game and 3 free spins options with guaranteed winnings.
Jackpot
During the base game, you can fill the diamond counter at the top of the screen. When 6 diamonds have been successfully collected, the Diamond Link feature (or as we call it Lock it Link) is activated. This gives 3 free spins, during which each subsequent Diamond that falls on the playing field is fixed, and the free spins counter is reset to 3. Fill the entire grid with Diamonds and claim the Grand Jackpot! If the feature ends at positions that do not display Diamond Jackpots, Mini, Minor, and Major Jackpots, and random cash prizes.
Overall Rating
Greentube proved to us once again that they can make games. The beautiful design of the new slot machine was not a deceiving cover. The gameplay here is top-notch as it is packed full of jackpot action and 3 guaranteed free spins so you are unlikely to be left without anything at the end of your session.
Hits
Four jackpots
Three free spins feature with guaranteed winnings
Medium volatility
Misses
RTP is below average
Diamond Link - Mighty Emperor Slot - FAQ
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Does the slot have a progressive jackpot?
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Yes, 4 progressive jackpots can be won in this stellar game - Mini, Minor, Major, and of course Grand!
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What is the maximum win I can get?
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In this slot machine, the maximum win per spin is 1,250x the stake.
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What free spins options does the slot have?
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This slot machine is packed with 3 free spins options with guaranteed winnings! Among them: Wild Spin Feature, Sticky Spin Feature, and Colossal Spin Feature.
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