Millionaire Mystery Box: Demo
Where to Play Big Time Gaming’s Millionaire Mystery Box Slot

up to £60
Slots
Virtual Reality
18+. New UK customers only. 200% deposit bonus up to £60. Must use bonus code “OSUK200” upon registration to receive the bonus. Min deposit £20 and 48x wagering requirements apply on bonus (game weighting applies). £3 max bet applies when playing with an active bonus. Bonus expires if not claimed within 7 days. T’s and c’s apply. Please gamble responsibly, www.begambleaware.org. #ad

up to £100
Free Spins
Slots
18+. Play Safe. New UK customers only. Opt in required. 1x per customer. Min. £20 deposit. 1st deposit only. Selected games only. Max. Bonus £100 with 35x wagering and 50 Free Spins at £0.20/spin on Starburst™ with 35x Wagering. Free Spins and Bonus credited once deposit amount has been wagered on slots. Bonus and Free Spins expire 7 days after issue. Game weighting, game, country, currency, player restrictions and terms apply. #ad

up to £100
Casino
Slots
New players only • 30 Free Spins (FS) • FS must be claimed within 48 hrs of receiving the email and expires after 14 days • Max Free Spins winnings £100. Skrill + Neteller excluded. Always refer to Bonus Terms – www.begambleaware.org • General withdrawal restrictions & full T&Cs apply. #ad
Big Time Gaming’s 2nd Who Wants to be a Millionaire slot
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
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.
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 slot from Big Time Gaming was a huge hit and uses the MegaWays engine – it also pays up to 50,000 times your stake on each spin.