Heliopopolis Slot

PopWins™

Each winning symbol Pops and is replaced by 2 symbols, increasing the reel height. This is repeated as long as there are more wins. The reels can be expanded to 6 symbols tall in the base game and up to 8 symbols tall in Free Spins.

Free Spins

Landing 3, 4, or 5 Bonus symbols during Base Game triggers the Free Spins Mode. The progress of unlocking the reels in Free Spins does not fully reset between each spin. It is only reset down to the shortest reel height. In addition, fully unlocking the reels in Free Spins awards an additional +2 Free Spins and activates Synced Reels and Expanded Win Symbol.

Free Spins Modes

Before playing Free Spins, you’ll enter a Pre-Bonus screen with rewards options. The rewards are Synced Reels on every spin with a chance of landing huge 2×2 or 3×3 Symbols. Expanded Win Symbol with Wilds. 

There are 3 Free Spins Modes: You get 1280 starting ways, up to 7 free spins, and up to X5 starting multiplier when landing 3 Bonus symbols You get 3750 starting ways, up to 9 free spins, and up to X6 starting multiplier when landing 4 Bonus symbols You get 9072 starting ways, up to 11 free spins and up to X7 starting multiplier when landing 5 Bonus symbols.

Synced Reels

During the spin, 2 of the adjacent reels become synchronized and land identical symbols for a higher chance of forming a win combination.

Expanded Win Symbol

During free spins, any random symbol can be the Expanded Win Symbol. When the Expanded Win Symbol is a part of a win combination, the symbol expands to cover the entire reel for a chance of an even larger win. Any symbol, except BONUS, WILD, and MYSTERY SYMBOL, can be an Expanded Win Symbol.

Multiplier

Consecutive win in pop-round increases the Multiplier by x1 after the wins are paid. Fully unlocking the reels in Free Spins increases the Multiplier by X2 for every win in that pop-round. In addition, fully unlocking the reels in Free Spins gives +2 Free Spins.

Symbols Payout

Bonus Symbol

Land 3, 4 or 5 Bonus Symbols to enter Free Spins. Bonus Symbols do not have any payout value.

Wild Symbol

The Wild Symbol subtitutes for all other symbols, except Bonus Symbol. Wild Symbols appears only during Free Spins.

Mystery Symbol

Mystery Symbol appears only in Free Spins. A random number of mystery symbols can land in each spin. When mystery symbols land, the symbols are then revealed. When mystery symbols are revealed, they always result in the same symbol.

Win Ways

This game features up to 32,768 Win Ways.

3 identical symbols on adjacent reels count as win, no matter if they are aligned.

1 reel gap between symbols = no win.

The potential maximum win is limited to 20,000x bet. If the maximum win of the round reaches 20000x bet, the round immediately ends and the win is awarded up to the cap and all the remaining features are discontinued.

Malfunction voids all pays.

Play This Game For Real Money Online

We've checked the availability & listed the top casinos with this game below:

Our Top PicksBonusVisit Site
Red Casino Logo
Top Rated

Red Casino - 100% Up To £25 + 50 Extra Spins Welcome Package

18+. New players only. Min deposit £20. Max bonus 100% up to £25 on 1st deposit. 50 spins on specific game only on 2nd deposit. 35x wagering applies, within 21 days. Max wins from spins £100. Spins expire after 24 hours. Full T&Cs apply.

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666 Casino Logo
Player Favourite

666 Casino - Up To £66 + 66 Free Spins For New Players

18+. New players only. Min deposit £20. Max bonus 100% up to £66 on 1st deposit. 66 spins on Big Bass Bonanza on 2nd deposit. 35x wagering applies, within 21 days. Max wins from spins £100. Spins expire after 24 hours.

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King Casino Logo
Popular

King Casino - Up To £150 Welcome Package + 50 Extra Spins

18+. New Players Only. Min. deposit £20. UK players. Max. bonus 1st deposit 100% up to £50 and 2nd deposit 50% up to £100. Max wins from spins £100. 35x wagering applies, within 21 days. 20 spins on 1st deposit and 30 spins on 2nd deposit. Spins expire after 24 hours. Full T&Cs apply.

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Red Casino - 100% Up To £25 + 50 Extra Spins Welcome Package
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18+. New players only. Min deposit £20. Max bonus 100% up to £25 on 1st deposit. 50 spins on specific game only on 2nd deposit. 35x wagering applies, within 21 days. Max wins from spins £100. Spins expire after 24 hours. Full T&Cs apply.

666 Casino - Up To £66 + 66 Free Spins For New Players
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18+. New players only. Min deposit £20. Max bonus 100% up to £66 on 1st deposit. 66 spins on Big Bass Bonanza on 2nd deposit. 35x wagering applies, within 21 days. Max wins from spins £100. Spins expire after 24 hours.

King Casino - Up To £150 Welcome Package + 50 Extra Spins
Play Now

18+. New Players Only. Min. deposit £20. UK players. Max. bonus 1st deposit 100% up to £50 and 2nd deposit 50% up to £100. Max wins from spins £100. 35x wagering applies, within 21 days. 20 spins on 1st deposit and 30 spins on 2nd deposit. Spins expire after 24 hours. Full T&Cs apply.

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