Special Symbol
Area Symbol Transformation
A feature where a random symbol on the grid is selected as a "Marked Target," and all symbols within a 3x3 or 5x5 area surrounding it transform to match that target symbol.
Symbol Upgrade
Evolving into Higher Value
Symbol Upgrade is a powerful feature that progressively converts low-value symbols on the reels into higher-value ones as the game proceeds.
The core of this feature is not just a one-time symbol change, but a 'growth' structure where lower-tier symbols are permanently removed from the reels and replaced by higher-tier ones. This drastically increases the average expected payout of the reels towards the end of the round.
More Features in This Family
Special Symbol
Bonus Overlay Symbol
A feature where a special effect is overlaid on a regular symbol, which then awards a special bonus (e.g., free spins).
Special Symbol
Cash Symbol Cloning
A feature where existing cash symbols clone their values onto adjacent empty positions, multiplying the total collectable prizes.
Special Symbol
Cluster Merge & Level Up
A dynamic mechanic where winning clusters merge and transform into higher-level symbols, driving continuous progression.
All Slots with This Feature
Preview
Apex Devourer is a dinosaur-themed jungle adventure slot by Vivid Gaming. The slot is built on a 5x4 reel grid with 1,024 ways and offers a theoretical maximum win of x10,000. It also comes with special features such as Symbol Upgrade and Random Trigger, adding extra gameplay variety from the feature mix and surprise changes to the spin flow.
Preview
Abyssal Rite is a demon-themed slot by Vivid Gaming. The slot is built on changeable reels with 576-12,348 ways and offers a theoretical maximum win of x5,000. It also comes with special features such as Respin and Reel Expansion, adding extra spin chances around key symbols and expanded reel space during key moments.
Featured
Flaming Roar: Hold & Win is a safari-themed with a fiery lion slot by Toucan Royale. The slot is built on a 5x3 reel grid with 20 paylines. It also comes with special features such as Hold and Respin and Fixed Jackpot, adding locked-symbol bonus tension and extra jackpot targets alongside regular wins.
Preview
3 Dragons' Coin is a Chinese dragon and fortune themed slot by Tada Gaming. The slot is built on changeable reels with 243-7,776 ways and offers a theoretical maximum win of x1000x. It also comes with special features such as Fixed Jackpot and Progressive Jackpot, adding extra jackpot targets alongside regular wins and extra jackpot targets alongside regular wins.
Preview
Robin Hoodwink is a Robin Hood-themed slot by Pateplay. The slot is built on a 5x3 reel grid with 15,625 ways and offers a theoretical maximum win of x5,000. It also comes with special features such as Hold and Respin and Fixed Jackpot, adding locked-symbol bonus tension and extra jackpot targets alongside regular wins.
Preview
Wolf It Up! King is a fairy tale forest adventure-themed slot by Inspired Gaming. The slot is built on a 5x3 reel grid with 10 paylines and offers a theoretical maximum win of x2500x base stake. It also comes with special features such as Fixed Jackpot and Symbol-Driven Jackpot, adding extra jackpot targets alongside regular wins and extra jackpot targets alongside regular wins.
Preview
40 Fruits & Gold Coin Boost is a fruit-themed classic slot by Amusnet. The slot is built on a 5x3 reel grid with 40 paylines and offers a theoretical maximum win of x1000x. It also comes with special features such as Fixed Jackpot and Progressive Jackpot, adding extra jackpot targets alongside regular wins and extra jackpot targets alongside regular wins.
Preview
Stitchers Get Stitches is a cursed toy store-themed slot by Stakelogic. The slot is built on an irregular reel setup with 4,096 ways and offers a theoretical maximum win of x20,000. It also comes with special features such as Hold and Respin and Symbol Split, adding locked-symbol bonus tension and symbol transformations that change the round shape.
Preview
Lava Power: Hold the Spin is a volcano and lava-themed slot by Gamzix. The slot is built around an irregular reel setup and offers a theoretical maximum win of x2,000. It also comes with special features such as Bonus-Only Payout and Hold and Respin, adding a concentrated bonus-only payout loop and locked-symbol bonus tension.
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