Millionaire Mystery Box

Getting Started with Millionaire Mystery Box

Millionaire Mystery Box is a 5-reel video slot from Big Time Gaming. The game offers 243 ways to win on every spin, giving players a range of winning possibilities each round.

Setting Your Stake

To begin, select your preferred stake using the left and right arrow buttons. Your chosen stake amount is clearly shown in the stake display. Remember, all payouts are based on the stake for each spin.

Spinning the Reels

Once you're ready, press the Play button to spin the 5 reels. The reels will spin and stop, revealing a combination of symbols to determine if you have won.

Exploring Game Features

x2 Wild Symbol

The Wild symbol can appear on reels 2, 3, and 4. It substitutes for all other symbols except the Scatter. Whenever a Wild is part of a winning combination, it doubles the win for that combination.

Mystery Box™ Feature

The Mystery Box symbol appears on reels 2, 3, and 4. When it lands, it opens up to reveal another symbol. If 2 or 3 Mystery Box symbols show up at once, they all transform into the same symbol. After the Mystery Boxes have revealed their symbols, wins are calculated.

Gamble Feature

Every win activates the Gamble button. You can choose to gamble your win for the chance to double it up to five times. In some cases, the Gamble Feature may not be available.

Understanding Scatters and Free Spins

Scatter Symbols

Landing 3, 4, or 5 Millionaire Scatter symbols triggers 7, 12, or 20 Free Spins, respectively. The Scatter pays out regardless of where it lands on the reels.

Free Spins and Multiplier Ladder

During Free Spins, a 12-rung Multiplier Ladder becomes active. If you trigger Free Spins with 3, 4, or 5 Scatters, the ladder starts on rungs 1, 2, or 3, respectively. All wins within Free Spins are multiplied by the current rung's multiplier.

• Each additional Scatter during Free Spins moves the Multiplier Ladder up by one rung.
• Every rung awards an extra Free Spin—except for rungs 4, 8, and 12, which each grant three extra Free Spins.

Return To Player (RTP)

The theoretical payout rate for Millionaire Mystery Box is shown in-game. This RTP value provides guidance on the long-term expected return from the total stakes placed.

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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.