Mystery Coin 27 Slot Review
See a penny, pick it up. Everyone's grandmother said it, nobody's grandmother could explain it, and yet I still stoop for a coin 🪙 on the pavement like it's going to change my week.
I've got no explanation for why a coin gets loaded with meaning while a button or a pebble lying next to it gets nothing. But the ritual sticks: spot it, pocket it, walk off convinced the day owes you something now.
It's the cheapest superstition going, which is probably why it outlived all the others.
That same stubborn faith in a stray coin is what powers Mystery Coin 27 slot from 1Spin4Win.
Landing enough of them is the whole game here: 3 or more Coin symbols open up Free Spins, and then a Mystery Coin symbol 🔮 sits on the middle reel deciding whether your faith gets paid back as an extra spin or a doubled win.
Grandma would've approved of the logic, if not the bet sizes 💸.
Gameplay
The reels sit on a dark red background with flame graphics licking up both sides and across the top of a gold-trimmed frame. Past that fire border there's nothing else going on. It's a plain classic 3-reel setup with no scenery to speak of.
You're playing a 3x3 grid with 27 ways. 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 97.18%, volatility is high, and the max multiplier tops out at 2,000x for a max win of $100,000.
Wins pay left to right only. Bets run from $0.10 to $50 per spin, and BitStarz doesn't list any currency restrictions here, so all currencies are welcome.
Top of the paytable is the red 7 symbol at 40x for 3-of-a-kind, the best you'll get from the regular symbols. The Bell symbol pays 20x, and the Horseshoe and Grapes symbols both pay 16x, and it's a steep drop from there to the fruit.
Plum, Orange, Lemon, and Cherry symbols make up the low tier, and 3-of-a-kind on any of them pays 2x. At the $50 max bet, that red 7 line is $2,000, and a fruit line is $100.
The Wild symbol is a blue star, and it substitutes for everything except the Coin symbol.
The Coin symbol carries its own numbered value, and 3 or more of them landing on a winning line pay out their combined value directly. Land 3 or more Coins anywhere on the reels and you've also triggered Free Spins.
The Mystery Coin symbol is separate, and it only shows up on the middle reel during Free Spins. Every time it lands it reveals as either a Coin worth 1 extra spin or a Coin that doubles that spin's win.
There's one more doubler in the base game, and it's the sort of thing you'll see once and then chase forever: if all 9 positions land the same low-paying fruit (Plum, Orange, Lemon, or Cherry), your total win gets multiplied by 2x.
You've got to give the studio some respect for the effort, but let's be honest, that's a lot of screen for not a lot of money.
Features
FREE SPINS:
Land 3 or more Coin symbols anywhere on the reels and you get 5 Free Spins.
Every Coin that lands on a winning line during the round keeps paying out its own value on top of that, so the Coins don't stop earning once they've let you in the door.
Mystery Coin:
During the round, the Mystery Coin symbol can land on the middle reel and flips into one of two things: a Coin worth 1 extra spin, or a Coin that doubles the current spin's win.
The extra spin gives the symbol another chance to land, which gives you another shot at either outcome, and that's the whole engine behind a big round: every extra spin is another shot at another double.
BUY BONUS:
Buy Bonus skips you straight into the Free Spins round for a one-time cost taken off your balance.
Performance
The game ran without a single stutter or loading hiccup during testing.
Maximum Win
Max win is $100,000, hit via the max multiplier of 2,000x at the top bet of $50, with bets starting from $0.10.
Conclusion
The money here comes from the Free Spins round and the Mystery Coin sitting inside it. Nothing else on the game moves the needle much.
Every spin in the round gives that symbol a chance at the middle reel, and each hit either extends the round or doubles what the spin just paid.
Getting to 2,000x means several of those doublings compounding across a long round, not one heroic spin. That's a real outcome over an extended Free Spins run, but it isn't something you should expect to see.
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 high enough to fund longer sessions instead of short defensive ones, which matters when your entire win potential is locked behind a trigger.
Here's the problem though: the volatility is high, but a 2,000x ceiling is what a low-volatility game usually hands you. The swings are sized for a much bigger top prize than the game actually pays.
Buy Bonus at least removes the grind of waiting for 3 Coins to show up naturally, so it suits players who want the Mystery Coin mechanic on demand rather than after a long stretch of base-game spins.
This suits high-volatility players who are fine with a lower ceiling than the rating implies. Cautious low-bet players should walk in knowing the swings arrive without a matching top prize attached.
Slot Details
Game Provider: 1Spin4Win
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.: 27 Ways
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.: 97.18%
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.: High
Bonus Round: No
Progressive: No
Free Rounds: Free Spins
Max Multiplier: 2,000x
Max Win: $100,000
Published by
BitStarz, award-winning Bitcoin Casino
