Play Millionaire Mystery Box Slots Online

With 5 reels and 243 chances to win, Millionaire Mystery Box is powered by Big Time Gambling. It's an online slot machine based on Who Wants to be a Millionaire that can be played on desktop, mobile, and tablet devices for as little as 20p per spin. You can acquire any symbol, including the wild or scatter, when using the Mystery Box Reveal function that is included.

The soundtrack also captures the essence of the programme with beautiful animations and images. A, K, Q, J, 10, and 9 royals are among the symbols that may be seen under studio lighting. Red, green, purple, and blue diamonds are also present.

How to Play Millionaire Mystery Box Slot Games

The wild symbol, the 2x Mystery Box, doubles pay-outs when it forms part of a winning combination and can be used to substitute all other symbols except the scatter. The values are increased for extremely large wins if you acquire more than one.

We'll look at the wild symbol before moving on to the thrilling features with large multipliers. This one, in place of the other, has a 2x multiplier of its own that it applies each time it forms a new winning combination. If multiple wilds participate in a win, they multiply the value of each wild's contribution, giving your winnings a potentially enormous boost.

A random bonus game called Millionaire Mystery Box will present random symbols, such as scatters or wilds.

However it seems that the game's free spins are where the most excitement comes from. With three or more of the slot's scatter game logos, you can start with seven free spins. In this mode, scatter symbols are collected as you receive them, and the multiplier increases. 

Together with the increase in the multiplier, each additional scatter also grants you 1 or 3 extra free spins. For a total of 24 free spins and a 50x multiplier on the final few spins, getting 11 scatter symbols awards you with an additional 17 spins.

As the name implies, Millionaire Mystery Box has a Mystery Box Reveal feature that can, at random, be activated by the Mystery Box symbol and reveal any symbol, including the wild and scatter. The scatter and wild both contribute to the next bonus feature's formation of winning combos.

Moreover, Millionaire Mystery Box has a Gamble feature that gives you the chance to double your winnings after a victory. Although it is a rather common element, it fits in nicely with the theme and has a traditional land-based vibe. You can keep doubling up until you win the most money possible.

The UK Gambling Commission has verified that this game, which is provided by Big Time Gaming, has been independently tested and meets the requirements for UK players. You should contact The Phone Casino and follow our complaints policy if you have any issues playing this game or any other game.

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

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.

A bet is placed only when it has been received by our server from your handset using our software. Once a bet has been placed it is final and binding and cannot be cancelled or changed. For the avoidance of doubt, a bet remains valid even if the result cannot for any reason be displayed back to your handset (due, for example, to a network failure, interruption of communication, or if you receive a phone call). In the event of a game termination, any relevant jackpot will be paid out on a random draw authorised by the regulator.

The theoretical average return to player (RTP) is up to 96.36%. This RTP represents the long-term expected payback of the game which has been calculated by an independent testing company and monitored monthly.

Malfunction voids all plays and pay outs.

A bet is placed only when it has been received by our server from your handset using our software. Once a bet has been placed it is final and binding and cannot be cancelled or changed. For the avoidance of doubt, a bet remains valid even if the result cannot for any reason be displayed back to your handset (due, for example, to a network failure, interruption of communication, or if you receive a phone call). Malfunction voids all plays and pay outs.