Kings of Crystals III Power Combo Slot Review

In 1997, a Swedish man named Johan Johansson spent $48,000 on a single quartz crystal at auction, claiming it would "align his chakras to wealth frequencies." 🧘 He carried it everywhere for three years, even sleeping with it under his pillow.

When asked if the crystal worked, he admitted he'd lost his job, his wife left him, and he was living in his parents' basement – but insisted the crystal was "still charging" 🔌 and would kick in any day now.

Collectors of rare crystals will spend absurd amounts of money on rocks they genuinely believe hold mystical properties, which is either deeply spiritual or deeply gullible, depending on who you ask. 🤷‍♂️ Either way, the crystal industry is worth billions, and people are still buying.

This is Kings of Crystals III Power Combo slot, and it comes from Quickfire.

Gameplay

The grid is a 5x3 setup during the base game, expanding to 5x6 during Free Spins, which means paylines jump from 40 to 60.

The theme is all King Arthur, but there are Jackpots above the reels, and a Wheel of Fortune to the left of the grid – more on these later.

The mobile version is a bit cluttered, to be honest. Don’t even bother with landscape mode; the grid is tiny, and it makes things even worse.

Low-paying symbols (9, 10, J, Q, K, A) pay between 0.70x and 0.80x for five-of-a-kind. High-paying symbols include a Silver Goblet and Gauntlet, both at 2.50x, a Blue Character and Red King also at 2.50x, and the Golden King topping out at 5x for five matches.

Yeah, you read that right – the top symbol maxes at 5x for a full line, which means this paytable's doing absolutely nothing for you unless features kick in.

The RTPRTP stands for “Return to Player.” The RTP describes the total bet amount that a game returns to players over millions of spins, and that figure is represented by a percentage. Table games, such as Roulette, typically have higher RTPs than many slots.

RTP needs to be considered in conjunction with a game’s volatility rate. sits at 96.2%, volatility is medium, and betting ranges from $0.20 to $16.50. The max multiplier caps at 14,750x, delivering a max win of $243,375.

The game's available in fiat currencies only – Australian dollar, Japanese yen, and Russian ruble aren't invited, though.

Wild symbols appear on reels 2, 3, 4, and 5, substituting for everything except Scatters, Hourglass, Coin, and Wheel symbols.

Three color-coded Scatter symbols (Red, Green, Blue) trigger Free Spins, with each color activating a different modifier (Power). Land combinations of different colored Scatters and you'll trigger Free Spins with multiple Powers active simultaneously.

Features

FORTUNE WHEEL:

Landing 5 Wheel symbols in the base game spins the Fortune Wheel, which awards a Jackpot, cash prize (1x to 15x), Free Spins trigger, or grows the Powers. Only one Wheel symbol can land per spin, and this feature only triggers in the base game.

UP SYMBOL:

The three color-coded Up symbols (Red, Green, Blue) are collected above the reels. When you land an Up symbol, Wheel symbols are collected in the corresponding color's container.

After a Fortune Wheel prize is awarded, all prize values move up to the next level, becoming more valuable. Once all containers are full, the highest prize level is reached.

When you hit the highest prize level, Fortune Wheel prizes stay at that level. Up symbols grow the Jackpot Power.

POWER SPINS:

Any base game spin can randomly become a Power Spin, revealing one of three Power Combo features for a single spin.

Wild Power Spin: Sticky Wild symbols appear in random positions. The number of sticky Wilds added matches the number shown on the Wild Power icon.

Jackpot Power Spin: 2 to 5 Coins land and award cash prizes of 1x, 2x, 3x, 5x, or 10x.

Multiplier Power Spin: A 2x2 multiplier zone is activated. Any winning payline that crosses the multiplier zone is multiplied by the value shown in the Multiplier Power icon.

COIN SYMBOL:

Golden Coin symbols reveal either a colored coin or a cash prize. Cash prizes pay 1x, 2x, 3x, 5x, or 10x your bet.

Each of the four Jackpots has an individual container next to it. The containers collect differently colored coin symbols – Red coins for Grand, Purple for Major, Green for Minor, Blue for Mini.

When a Jackpot's container is full, the respective prize is awarded.

JACKPOTS:

Now for the moment you’ve been waiting for: what do the various Jackpots pay? Here goes:

• Grand Jackpot: 10,000x (requires 5 Red Coins)

• Major Jackpot: Starts at 250x, max 500x, increased by 50x increments (requires 5 Purple Coins)

• Minor Jackpot: Starts at 20x, max 70x, increased by 10x increments (requires 5 Green Coins)

• Mini Jackpot: Starts at 10x, max 35x, increased by 5x increments (requires 4 Blue Coins)

When Free Spins with Jackpot Power are completed, all Jackpot values reset to their minimum values.

FREE SPINS (POWERED FREE SPINS):

Red, Green, or Blue Scatters may randomly trigger 5 Free Spins with a special Power. Red Scatter activates Wild Power, Green Scatter activates Jackpot Power, and Blue Scatter activates Multiplier Power.

Combinations of differently colored Scatters may randomly trigger 5 Free Spins with up to 3 active Powers. The more Scatters you collect, the greater the Power during Free Spins.

Scatter combinations:

• Red + Green = Wild Power + Jackpot Power (5 Free Spins)
• Red + Blue = Wild Power + Multiplier Power (5 Free Spins)
• Green + Blue = Jackpot Power + Multiplier Power (5 Free Spins)
• Red + Green + Blue = Power Combo (all 3 Powers active, 5 Free Spins)

During Powered Free Spins, the grid expands to 5 reels and 6 rows with 60 active paylines. Colored Scatters only appear in the base game.

FREE SPINS WITH WILD POWER:

Red Scatters may trigger 5 Free Spins with Wild Power. When Free Spins with Wild Power are triggered, sticky Wild symbols are placed in random reel positions and remain there until Free Spins end.

The number of sticky Wilds added matches the number shown on the Wild Power icon.

Collecting Red Scatters may grow the number of sticky Wilds for Free Spins up to 10. Any Wild symbol that lands during Free Spins becomes a sticky Wild as well.

When Free Spins with Wild Power are completed, the amount of sticky Wilds resets to 3.

FREE SPINS WITH JACKPOT POWER:

Green Scatters may randomly grow Mini, Minor, or Major Jackpot values. Green Scatters may also trigger 5 Free Spins with Jackpot Power.

This Power holds the key to the Grand Jackpot – the 10,000x prize.

FREE SPINS WITH MULTIPLIER POWER:

Collecting Blue Scatters may increase the Free Spins multiplier up to 10x. Blue Scatters may also trigger 5 Free Spins with Multiplier Power.

At the start of Free Spins, a 1x3 multiplier zone is randomly placed on the reels. At the beginning of each spin, the multiplier zone expands until it covers the whole grid.

Any winning payline that crosses the multiplier zone is multiplied by the value shown in the Multiplier Power icon.

The multiplier value starts with the level achieved during the base game, and it can grow up to 25x during Free Spins. The multiplier grows each time a Blue Hourglass symbol lands.

When Free Spins with Multiplier Power are completed, the multiplier resets to 3x.

When Multiplier Power and Jackpot Power are both active, multiplier zones are applied to cash prizes as well.

HOURGLASS SYMBOLS:

Hourglass symbols are present on reels 2, 3, and 4 only during Free Spins.

Red Hourglass: Adds +1 Free Spin

Blue Hourglass: Adds +1 Free Spin and grows Multiplier Power

Red Hourglass symbols appear during Free Spins when Multiplier Power is not activated. Blue Hourglass symbols appear during Free Spins when Multiplier Power is activated.

When Free Spins have finished, any activated Power is reset.

BOOST FEATURE (ANTE BET):

The Boost Feature is available in the base game. Activating the Boost raises the bet by 20% (1.20x total), increasing your chances of triggering Free Spins.

UPSIZER:

The Upsizer offers feature upgrades when Free Spins are triggered. Active Upsizer options depend on which Free Spins were triggered.

The feature can be used to buy enhancements for the triggered Free Spins, such as additional sticky Wilds, a higher Free Spins multiplier, or access to the maximum Jackpot levels.

Performance

I had no problems with the game’s performance.

Maximum Win

The max multiplier is 14,750x, and the max win is $243,375. Betting ranges from $0.20 to $16.50.

Conclusion

WHERE DOES THE MONEY COME FROM?

Money-making hinges entirely on Free Spins – and it matters which Powers you trigger and whether you land Power Combo with all three active simultaneously.

The single most important mechanic is the expandable multiplier zone during Multiplier Power, which starts at your base game level and can grow to 25x via Blue Hourglass symbols, then applies to the entire 5x6 grid by the end of each spin.

Combine that with sticky Wilds (Wild Power) and Jackpot collection (Jackpot Power), and you've got a shot at the 14,750x cap. Hit frequency and bonus frequency are not supplied.

Since the base game paytable is weak and the bulk of profit potential comes from Free Spins, the Boost option is defensible if you're willing to grind through fewer dead spins at a slightly higher cost.

This slot suits balanced players willing to grind for Power Combo Free Spins at medium volatility, or high-risk players chasing the 10,000x Grand Jackpot via Jackpot Power.

Slot Details

Game Provider: Quickfire
Game Type: Video Slots
PaylinesPaylines are preset lines that run across the reels, and when you land matching symbols on them, that will result in a payout. The more paylines, the more ways you can win, but also the higher your bet per spin.: 40 - 60
RTPRTP stands for “Return to Player.” The RTP describes the total bet amount that a game returns to players over millions of spins, and that figure is represented by a percentage. Table games, such as Roulette, typically have higher RTPs than many slots.

RTP needs to be considered in conjunction with a game’s volatility rate.: 96.2%
Volatility RateSlot games can have low, medium, high, or extremely high volatility rates (or a combination thereof).

The less volatile the game, the more often it should pay out, but the lower the amount, the less the payout, as this is in keeping with the risk you’re taking. Volatility rate should be considered in conjunction with a game’s RTP.: Medium
Bonus Round: No
Progressive: Yes
Free Rounds: Free Spins
Max Multiplier: 14,750x
Max Win: $243,375
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