Millionaire Mystery Box

Rate This Free Game
(47 votes)
Big Time Gaming
24 more slots
Claim a 200% match bonus up to $5000

Ready to play Millionaire Mystery Box for real?

3 User Reviews for Millionaire Mystery Box

View More Reviews
Write a Review
Millionaire Mystery Box Slot Machine

Millionaire Mystery Box Slot Review

The Millionaire Mystery Box slot machine by Big Time Gaming is based on the game show Who Wants To Be A Millionaire. But you’ll only want to phone a friend to tell them how good it is. Millionaire Mystery Box gets its name from mystery boxes that reveal mystery symbols. There are also wilds that double prizes, as well as scatter symbols that trigger an amazing free spins feature with big multipliers.

You won’t be able to ask the audience for help but make sure you read the rest of our Millionaire Mystery Box slot review for all the details you need about this slot. 

Play a Slot Inspired by a Great Game Show

Who Wants To Be A Millionaire is one of the world’s most popular game shows, and the software provider Big Time Gaming needs commending for giving its Millionaire Mystery Box online slot a unique twist. 

You can line up popular poker cards and gems such as emeralds, rubies, sapphires, and amethysts. But you’ll also find the Millionaire Mystery Box slot has more exciting symbols. These include doubling wilds, mystery boxes, and scatters that can trigger a free spins feature in which you can climb the Millionaire multiplier ladder.

Enjoy 243 Ways to Win

The Millionaire Mystery Box slot machine doesn’t have traditional paylines. Instead, this 5-reel slot offers an amazing 243 ways to win. Even better, you can stake each spin with a minimum bet of just 0.10 coins. But there are 25 different spin-stakes to choose from up to the maximum bet of 40.00 coins. The RTP of the Millionaire Mystery Box slot is 96.642%. 

Climb the Millionaire Ladder

When you play Millionaire Mystery Box online slot, you can win main game prizes for lining up three to five matching poker or gem symbols, whilst you only need to hit two amethysts to win. Prize lines can also be completed by wilds that substitute on reels two, three, and four and double prizes. 

The mystery boxes that give this slot its unique twist also appear on reels two, three, and four and these will reveal mystery symbols that can make more winning lines. Hit two or three mystery boxes and these will all turn into the same symbols to increase your chances of bigger wins. There’s even a gamble feature you can use to double any prize up to five times. 

But the symbols that everyone wants to see are the Who Wants To Be A Millionaire Mystery Box scatter symbols. Three, four, or five scatters will respectively trigger 7, 12, or 20 free spins. You can win many prizes during your free spins, whilst extra scatter symbols will help you climb the Who Wants To Be A Millionaire ladder. 

Each scatter will move you up a rung, awarding extra free spins and increasing multipliers. Reach rung 12 and all your prizes will be multiplied 50x. Now that is a great reason to spin the Millionaire Mystery Box slot machine.

Try More Big Time Gaming Slots

The Millionaire Mystery Box slot isn’t the only Who Wants To Be A Millionaire-themed slot by Big Time Gaming. You can also spin the Who Wants To Be A Millionaire Megaways slot. This version has an amazing 117,649 megaways. It also features an extra reel, cascades, wilds, free spins, and multipliers. 

If you’ve had enough of being a millionaire, you can also play many other high-paying slots from Big Time Gaming. Popular titles include Danger High Voltage, Faeries Fortune, and Starquest. If you like to squeeze plenty of juice out of your slots, we also recommend you try a few spins of Opal Fruits, a game that has a mouthwatering Triple Reaction Feature.

Sing This Slot’s Praises

There is also a song called Who Wants To Be A Millionaire, and we think you’ll never stop singing the praises of the Millionaire Mystery Boxes slot machine. What’s not to enjoy about a slot that has double-paying wilds, mystery boxes that reveal mystery symbols, and an awesome free spins feature with up to 50x multipliers.

Your only choices to make are whether to play it on mobile or tablet and which of our recommended top online casinos you want to play it at. 

Play Millionaire Mystery Boxes for free or real money now or check out other great slots from Big Time Gaming below. 

Our Favourite Casinos

Slots.lv 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.

CHOOSE ONE

Treasure Box

2

Treasure Box

1

Treasure Box

3

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.