Millionaire Mystery Box Slot Review

The Millionaire Mystery Box slot is powered by Big Time Gaming and comes with 5 reels and 243 ways to win. Playable from just 20p a spin across desktop, mobile and tablet devices, it’s the 2nd slot based on Who Wants to be a Millionaire. It comes with a Mystery Box Reveal feature where you can get any symbol including the wild or scatter. It’s all about the Free Spins feature where you collect scatters to win up to 24 free spins with a multiplier up to 50x!

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Big Time Gaming’s 2nd Who Wants to be a Millionaire slot

Mystery Box Reveal feature

Visually, Millionaire Mystery Box is rather nice – it has a land-based feel and encapsulates the essence of the game show perfectly. With slick graphics and animations, the soundtrack also portrays the show. With studio lights, symbols include A, K, Q, J, 10 and 9 royals – you’ll also see red, green, purple and blue gems.

The 2x Mystery Box is the wild symbol and replaces all symbols bar the scatter – it also doubles wins when part of a combination. If you get more than 1, the values are multiplied for huge wins.

Mystery Box Reveal feature

Mystery Box Reveal feature

Millionaire Mystery Box, as the name suggests, comes with a Mystery Box Reveal feature – triggered at random, the Mystery Box symbol can reveal any symbol including the wild and the scatter. The wild will help form winning combinations and the scatter will help contribute to the following bonus feature.

Gamble feature

Millionaire Mystery Box also comes with a Gamble feature – when you get a win, you have the option to double up. It’s a pretty standard feature but it ties in well with the theme and classic land-based feel. You can carry on doubling up until you reach the maximum payout/win.

Free Spins feature

Millionaire Mystery Box is all about the Free Spins feature – you will trigger the feature when you get 3 or more scatters (the Who Wants to be a Millionaire logo) – you will begin with 7 free spins.

You will notice there’s a free spin ladder system to the left of the reel set. Every scatter appearing during the free spin moves you up the multiplier ladder by 1 and gives you additional free spins:

  • 1 scatter will give you 1 more free spin with the multiplier increasing to 3x
  • 1 more scatter will give you 1 more free spin with the multiplier increasing to 4x
  • 1 more scatter will give you 3 more free spins with the multiplier increasing to 5x
  • 1 more scatter will give you 1 more free spin with the multiplier increasing to 6x
  • 1 more scatter will give you 1 more free spin with the multiplier increasing to 7x
  • 1 more scatter will give you 1 more free spin with the multiplier increasing to 8x
  • 1 more scatter will give you 3 more free spins with the multiplier increasing to 10x
  • 1 more scatter will give you 1 more free spin with the multiplier increasing to 12x
  • 1 more scatter will give you 1 more free spin with the multiplier increasing to 15x
  • 1 more scatter will give you 1 more free spin with the multiplier increasing to 30x
  • 1 more scatter will give you 3 more free spins with the multiplier increasing to 50x

This means you can collect 11 scatters during the feature to benefit from 17 extra free spins giving you a total of 24 free spins – the quicker you climb the ladder, the quicker you’ll play with a multiplier up to 50x.

Millionaire Mystery Box Megaways

12,000 x Stake Wins from each free spin

Millionaire Mystery Box is a good slot from Big Time Gaming (as always) – medium variance, the bigger wins will come from the increasing multiplier in the Free Spins feature. All in all, you can win up to 12,000 times your stake on each free spin.

I also recommend you play the original Who Wants to be a Millionaire Megaways slot from Big Time Gaming was a huge hit and uses the MegaWays engine – it also pays up to 70,000 times your stake on each spin.

 

Millionaire Mystery Box Slot Information

  • Game:
    Millionaire Mystery Box
  • Software:
    Big Time Gaming
  • Type:
    Video Slot
  • Reels:
    5
  • Paylines:
    243
  • Total Coins:
    20
  • Coins Range:
    0.20 to 100.00
  • Jackpot:
    100
  • Bonus Round:
    Yes (3)
  • Free Spins/Multiplier:
    7-24/2-50x
Review by Chris Taylor

Review by Chris Taylor

Chris is a slots expert that has reviewed and played over 4,000 online slots. Having being in the iGaming industry for over 16 years, he knows how slots work, how bonus features are triggered and how the RTP and variance affect the gameplay.

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