BTG Adds Millionaire Mystery Box to the Family
Posted in Game Reviews, New Games December 27, 2019

BTG Adds Millionaire Mystery Box to the Family

When Big Time Gaming released Who Wants to Be a Millionaire back in 2018, it became an instant hit. Ever since the launch of the slot, the iGaming community has been speculating about what would happen when someone reaches the game’s Free spins feature. Quickly after the release, someone uploaded a video showing the community what happens when you gamble your way up to the maximum 50 Free spins.

Everyone was disappointed, to say the least, when they found out that the mystery player had walked away with a 300x win, which was laughably small for a game that advertised the potential of over 20,000x.

BTG took the criticism seriously and decided to make amends by making a remake, only this time offering much higher payouts and upgraded gameplay.

In this article, we’ll talk about the slot characteristics; you can decide for yourself afterwards whether or not the game is worth a punt.

Betting Ranges and Prizes

Millionaire Mystery Box is a 5-reel, 3-rows slot where bet sizes range from £0.20 to £100 on a single spin. There are 20 coins involved, which translates to a maximum of £5 per line.

During the base game, you may not be excited about the game’s winning combinations. But it’s during the Free spins feature when all the magic happens. If you collect enough Scatters during the bonus game, you can boost the multipliers up to 50x, which allows you to win big, up to 12,000x total stake.

Apart from offering fantastic potential for massive wins, the game has medium volatility, which is one of the reasons why it has been so appealing from the moment it was released.


Before we talk about the most rewarding symbols, let’s take a look at the Wild symbols. They come with a 2x multiplier of their own, which is activated as a substitute every time a winning combination is formed. If you manage to land several Wilds at once, you could end up with considerable boosts to your wins.

Millionaire Mystery Box features a random bonus game that comes in the form of random symbols, including Wilds and Scatters.

Lastly, as the icing on the cake come Free spins. Land 3+ game logos, and you’ll trigger seven Free spins, to begin with. The more Scatters you get during the bonus mode, the more your multiplier gets upgraded. Each Scatter also gives an additional one or three spins, apart from the multiplier boost. In total, you can get 11 Scatter symbols, which translate into 17 Free spins and a 50x multiplier!

Graphics and Theme

Based on the ever-popular TV quiz, the game graphics are exciting. The Royals are a part of the game, as well as four gemstones, which makes the gameplay fun and pleasant to watch. They’ve added the game logo as the Scatter and the Wild mystery box, but these don’t come around much often. It’s mostly in the background that you see the connection to the quiz.

Final Thoughts

Unlike its predecessor, Millionaire Mystery Box wasn’t implemented on the Megaways Mechanics. Nevertheless, the Mystery Box feature can still produce pretty hefty base game wins. It certainly boosts your bankroll long enough until you get to the Free spins where the big bucks potential lies. If luck is on your side, the Free spins round can be advantageous, offering a potential for a 50x multiplier.

The 12,000x maximum win is more than any slot player can ask for, and the game will be especially appealing to fans of the classic Millionaire game from 2018. Millionaire Mystery Box has certainly deserved its spot in the WWTBAM slot series.

Big Time Gaming, BTG, Millionaire Mystery Box, New Slots, Who Wants to Be a Millionaire


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