The Big Time Gaming-powered Millionaire Mystery Box slot machine has 5 reels and 243 chances to win. It's the second slot game based on Who Wants to be a Millionaire and is playable starting at just 0.20 per spin on desktop, mobile, and tablet devices. You can acquire any symbol, including the wild or scatter, when using the Mystery Box Reveal function that is included.
Visually, Millionaire Mystery Box is rather appealing; it has a grounded feel and wonderfully captures the spirit of the game show. The soundtrack also captures the essence of the programme with slick visuals 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.
The wild symbol, the 2x Mystery Box, doubles payouts 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.
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.
Additionally, 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 Who Wants to be a Millionaire logo serves as the game's scatter symbol. Three or more of these symbols will activate the feature, which starts you off with seven free spins.
To the left of the reel set, you'll see a ladder-style structure for free spins. Every scatter occurring throughout the free spin increases your multiplier by 1 and awards you with more free spins.