Mystery Stacks

Rate This Free Game
(43 votes)
Silverback Gaming
1 more slots
Claim a 200% match bonus up to $5000

Ready to play Mystery Stacks for real?

3 User Reviews for Mystery Stacks

View More Reviews
Write a Review
Mystery Stacks Slot

Mystery Stacks Slot Review

Travel back in time and get your groove on as you play the Mystery Stacks online slot. Powered by Silverback Gaming, this 5x3 slot game takes you on a journey through the ages with medium to high volatility and 95.00% RTP. Spin the neon reels and keep a special eye out for the mystery coins, which will stack up to reveal a same symbol to help you complete a winning payline. Land an expanded Mystery Coin to get a guaranteed win.

All this and much more – play the Mystery Stacks slot for free and see for yourself!

Go Back to Basics – Retro Style

The neon lights are buzzing and the music is playing, which could only mean one thing – the Mystery Stacks online slot. This retro-themed video-slot takes the term “back to basics” to a whole new level with the jukebox-styled grid and bright symbols. 

The symbols are similar to those of your traditional fruit slot, with the bell being the highest-paying one. Land five of these to walk away with a payout of up to 50,000 credits. Next come the triple, double, and single BAR icons. 

The Mystery Stacks slot machine’s lower paying symbols include fruit which pay in the following order: watermelon, plum, orange, lemon, and cherry.

Set Your Stake

Get the retro party started by setting your first Mystery Stacks slot machine bet. Take your pick from values ranging between 0.10 and 1,000.00. Such a wide selection proves that this game is one for every kind of roller. Your stake will be spread over the 10 paylines found in this 5x3 game. Winning paylines can start from anywhere within the grid.

We’ve put together a table with the symbol payouts based on a maximum bet of 1,000.00 below. We recommend checking out the Mystery Stacks online slot’s paytable to see the numbers corresponding to a lower stake.

Three on a Payline
Four on a Payline
Five on a Payline
Triple BAR
Double BAR / Single BAR
Watermelon / Plum
Orange / Lemon / Cherry

The Mystery Stacks slot machine comes with 95.00% RTP and medium to high volatility.

Unravel the Mystery

While the Mystery Stacks online slot may not have an abundance of special features, the ones it has could send you home with quite the win. You’ll see a coin fall across the reels. Its size determines its feature.

The smaller one (the same size as a normal symbol), the Mystery Coin, flips at the end of the spin, revealing a mystery symbol. The larger one, the Mega Coin, has the same function but it guarantees you a win.

The symbols these Mystery Stacks slot machine coins reveal will always be the same for increased chances of completing a winning combination.

Keep the Vintage Theme

If you enjoyed spinning retro style, then check out the Disco 70s slot by Portomaso Gaming. Play over 25 paylines for a prize of up to 1,000 credits when collecting enough disco balls. Get to the bonus game to try your luck with a x3 win multiplier.

If it’s more paylines you’re after, make a beeline for the Twin Spin slot by NetEnt. Take advantage of the 243 ways to win and enjoy the Twin Reel Feature, where each spin starts with identical reels that are linked together for more chances to win.

Get Your Groove On

If you’re looking for simple meets retro, then the Mystery Stacks slot machine by Silverback Gaming is definitely the right game for you. Dance away with your share of massive wins as you spin with medium to high volatility and 95.00% RTP. Collect Mystery Coins for more chances of completing a winning payline and keep a special eye out for the Mega Coins for guaranteed wins.

That’s all from us! Take the next step and play the Mystery Stacks slot online today!

Mystery Stacks Slot FAQs

Where can I play the Mystery Stacks slot machine for free?

You can play the Mystery Stacks slot for free right here at VegasSlotsOnline, along with thousands of other demo games. Try out as many as you like without spending a dime today!

How do I know that the Mystery Stacks online slot safe to play?

We reviewed the Mystery Stacks slot machine and concluded that it is safe to play. Remember to find a secure online casino which comes with a Silverback Gaming catalog of games.

How quickly can I claim wins from the Mystery Stacks slot machine?

How quickly you can claim your Mystery Stacks online slot winnings depends on your chosen casino. Check out our list of the fastest paying casinos and sign up to one which offers speedy cashouts.

Can I play the Mystery Stacks online slot with Bitcoin?

Sure! You can spin the Mystery Stacks slot machine using Bitcoin at any casino that gives you the option to do so. We’ve compiled a list of the best Bitcoin casinos to help with your choice.

Free to Play Silverback Gaming Slot Machine Games

Our Favourite Casinos CasinoSlots Empire CasinoSuper Slots CasinoSloto'Cash CasinoBoVegas CasinoCafe Casino

You've Won a Free Spin

Join SLOTS.LV Casino now and get Get 200% up to $5000 in Bonuses

Claim Bonus

Will You Win?

Choose one of the treasure chests to see if you've won an exclusive bonus.


Treasure Box


Treasure Box


Treasure Box


No thanks

You've Won!

Treasure Box

Enjoy Your Prize!

You've won an exclusive one-time only bonus at:

Claim a 200% match bonus up to $5000
Claim Bonus
No thanks

Report a problem with

Let us know what went wrong:

Submit Your Feedback

Thank you for providing feedback! We’re sorry didn’t work.

If you’d like to tell us more about your experience Click here.

While we resolve the issue, check out these similar games you might enjoy.