Thunder Coins XXL: Multicoin Slot Review

In 1752, Benjamin Franklin flew a kite in a thunderstorm to prove lightning was electrical.🪁

He survived, which is more than can be said for his reputation as a rational man, because who looks at a lightning bolt and thinks "I should get closer to that."⚡

The experiment worked, obviously, and we got electricity, which gave us slot machines, which gave us Thunder Coins XXL: Multicoin slot from Playson. Ben would be proud.🥹

Gameplay

This is a medium/high-volatility, 3-reel, 5-row game with 15 paylines that pay left to right.

The high-paying symbols are a Wild Seven (3x pays 30x total bet), Bells (3x pays 10x), and a Bar (3x pays 8x). The Wild is the Seven symbol, which substitutes for all symbols except Coins, Thunder Coins, and Multicoins.

The Coin is a standard gold coin that only lands on reels 1 and 3 and pays 1x, 2x, 3x, 4x, 5x, 6x, or 8x the total bet.

The Multicoin is a red lightning bolt coin that only lands on reel 2 and triggers the Multicoin Feature. The Thunder Coin is a blue lightning bolt that lands only on reel 2 and triggers the Thunder Feature.

This game accepts all currencies. You can bet as low as $0.10 and as high as $30. There's a 7,426x max multiplier that can lead to a $222,780 max win in this game. 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. is 95.65%.

Features

THUNDER FEATURE:

Landing a Thunder Coin on reel 2 alongside any Coin on reels 1 or 3 triggers the Thunder Feature. The Thunder Coin collects the values of all Coins on the reels, including any Jackpot Coins, and adds the total to the win for that spin.

MULTICOIN FEATURE:

Landing a Multicoin on reel 2 alongside any Coin triggers the Multicoin Feature. The Multicoin first collects the values of all Coins – including Jackpot Coins – and then multiplies that collected total by a randomly assigned multiplier of 2x, 3x, 5x, 7x, 10x, 15x, or 20x.

During the base game, if Coins land without a Thunder Coin or Multicoin, a Multicoin may be randomly added to reel 2, activating the Multicoin Feature or triggering the Bonus Game.

PILE OF GOLD:

Any Coin landing in the base game may randomly trigger the Pile of Gold Feature, which adds enough Coins, Thunder Coins, or Multicoins to the reels to activate the Bonus Game.

HOLD AND WIN:

Landing Coins on reels 1 and 3 alongside a Thunder Coin or Multicoin on reel 2 triggers the Bonus Game. Only Coins, Thunder Coins, and Multicoins land during this feature. Thunder Coins and Multicoins only land on reel 2, where they stick.

Each Coin displays a value of 1x, 2x, 3x, 4x, 5x, 6x, or 8x the total bet. The Bonus Game starts with 3 re-spins. Each new symbol that lands resets the counter back to 3. When re-spins run out, all Thunder Coin and Multicoin values are added to the total win.

In the Bonus Game, the Multicoin can retrigger additional random multipliers.

JACKPOTS:

Four Jackpots can appear as Coin symbols during the Thunder Feature or Multicoin Feature:

• Mini Jackpot: 15x total bet
• Minor Jackpot: 30x total bet
• Major Jackpot: 100x total bet
• Grand Jackpot: 1,000x total bet

BUY BONUS:

There are 3 options here:

• Bonus Game with 1+ Multicoin or Thunder Coin: 75x your bet.
• Super Bonus Game with one guaranteed Thunder Coin and one guaranteed Multicoin: 175x your bet.
• Multicoin Bonus Game with 2 guaranteed Multicoins: 250x your bet.

After purchasing any option, there is a chance to land additional Thunder Coins or Multicoins during the feature.

ANTE BET:

There are 2 Extra Bet, or Ante BetAn Ante Bet is an option that costs a percentage of your bet but increases your chances of landing triggering symbols that initiate a feature., modes:

• The Double Chance costs 1.5x the bet and doubles the chance of triggering the Bonus Game.
• The Thunder Spin costs 5x the bet, guarantees a Thunder Coin or Multicoin on that spin, and triples the chance of triggering the Bonus Game.

Performance

I tested this game on my Android phone and gaming laptop. I didn't encounter any issues while playing. The game’s reels take up most of the screen in portrait mode, with the controls neatly stacked underneath, with the Spin button holding prime position.

The game’s chunky design keeps the action clear and easy to follow at any size.

Maximum Win

This game can payout a $222,780 max win if you hit the game's 7,426x max multiplier while spinning with the highest bet. Betting starts at $0.10 and tops out at $30 per spin.

Conclusion

The money here flows through a single pipeline: get a Multicoin on reel 2 during the Bonus Game, stack as many Coin values as possible across re-spins, and hope the Multicoin retriggers a 20x multiplier on top.

That's the ceiling – a long Bonus Game run with a fat multiplier on the collected total. The Grand Jackpot at 1,000x adds another layer, but it triggers randomly during the Thunder or Multicoin Features, not through any collectible mechanic.

The paytable is classic fruit machine territory and won't move the needle. Three Bells at 10x and three Bars at 8x are just what keep the session breathing between feature hits.

The Wild Seven is the only base game symbol worth noting, and even a 30x three-of-a-kind on a $1 bet is a rounding error compared to what a multiplied Bonus Game can deliver.

The Extra Bets are the most interesting cost-management tools here. Double Chance at 1.5x your bet doubles Bonus Game frequency – it's the sensible grind option for players who want consistent access without nuking the bankroll.

Thunder Spin at 5x per spin is aggressive; you're guaranteeing a Thunder Coin or Multicoin and tripling Bonus Game odds, but $150 per spin at max bet is not a casual toggle.

For Buy Bonus, the 75x entry point gets you into the feature with at least one activator, but there's no guarantee of quality.

The 250x Multicoin Bonus Game is the high-conviction play. With two guaranteed Multicoins, the collected total has two chances at multipliers of up to 20x each, plus the retrigger possibility inside the feature.

Players with session longevity are best served playing with Double Chance active and letting the Pile of Gold randomly upgrade base-game Coin landings into Bonus Game triggers.

Players chasing the ceiling should use the 250x buy directly, or fire Thunder Spins at max bet and accept the variance that comes with it.

Either way, this is a coin-collection slot at heart. If reel 2 keeps delivering Multicoins during the Bonus Game and the random multiplier cooperates, the math can stack up fast.

Slot Details

Game Provider: Playson
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.: 15
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.: 95.65%
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/High
Bonus Round: Yes
Progressive: No
Free Rounds: Re-spins
Max Multiplier: 7,426x
Max Win: $222,780
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