Millionaire Mystery Box

Millionaire Mystery Box

Millionaire Mystery Box is a slot game featuring a vibrant design inspired by a popular television quiz show. Players encounter mystery symbols, multipliers, and a free spins round, creating dynamic and engaging gameplay that keeps the excitement levels high throughout every spin.

Play Button

Game Overview

Millionaire Mystery Box is a 5-reel video slot developed by Big Time Gaming, providing 243 ways to win.

Getting Started

Begin by selecting your stake using the left and right arrow buttons. The chosen stake is shown in the stake display. All prize values reflect the stake of the current spin.

How to Play

  • Adjust your stake amount with the arrow buttons until your preferred value is shown.
  • Press the Play button to spin the reels at your selected stake.
  • The 5 reels will spin and then stop, displaying your result.

Game Features

x2 Wild

The Wild symbol appears on reels 2, 3, and 4. It substitutes for all symbols except the Scatter. Whenever a Wild forms part of a win, the prize for that win is doubled.

Mystery Box™

The Mystery Box symbol can land on reels 2, 3, and 4. When 2 or 3 Mystery Box symbols appear anywhere in view, they all transform into a matching symbol once they open, potentially enhancing your chances of a win. Payouts are determined after the Mystery Boxes have revealed their symbols.

Gamble Feature

After each win, the Gamble button becomes available. Choose to Gamble for a Double or Nothing chance, up to five consecutive times per win. In some instances, this feature may not be accessible.

Scatter Symbols

Landing 3, 4, or 5 Millionaire Scatters anywhere on the reels awards 7, 12, or 20 Free Spins, respectively. Scatters pay in any position.

Free Spins Round

The Free Spins feature activates a Multiplier Ladder with 12 rungs. Depending on whether you trigger the feature with 3, 4, or 5 Scatters, the ladder starts on rung 1, 2, or 3, accordingly.

  • All wins during Free Spins are multiplied by the active Multiplier shown on the ladder.
  • Each Scatter that lands during Free Spins moves the Multiplier Ladder up by one rung.
  • Each rung grants an additional Free Spin, except for rungs 4, 8, and 12, which each award 3 extra Free Spins.

Return to Player

The Return to Player (RTP) represents the theoretical percentage of total wagers that is returned as winnings over the long run. The RTP value for Millionaire Mystery Box can be found displayed within the game.

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*All values (Bet Levels, Maximum Wins etc.) mentioned in relation to this slot game are subject to change at any time. Game features mentioned may not be available in some jurisdictions.