The original slot gets an upgrade in the Millionaire Mystery Box slot game with great themed graphics and fun features. The Millionaire Mystery Box game comes with mystery symbols, a gamble feature, free spins with multipliers up to 50X your bet, scatters, wilds that multiply each other, and the money-spinning Hot Seat. The max payout is 12,000X your stake.
Place your bets from just 0.20 up to 100 a spin to kick-off playing the Millionaire Mystery Box slot online or via any handheld. The game features five reels and 243-win ways with high and low valued symbols on the reels. The lower ones are 9-A royals, and the higher are green, blue, red, and purple diamonds. The purple is the most profitable, rewarding 25X your bet for 5-of-a-kind. Special symbols include a scatter and a wild, which is a multicolored “X2” that doubles all wins and multiplies each other if they connect.
The Mystery Box feature is what makes the Millionaire Mystery Box online slot unique. When the Mystery Box symbol appears on the three middle reels, all will turn into a random symbol, including a scatter and wild, helping to create winning combos and a chance to trigger free spins. The Gamble feature, triggered by landing a winning combo in the base game, lets you double on your win.
To trigger the Millionaire Mystery Box slot machine Free Spins feature, which starts with seven free spins, you need to land three or more scatters. To the left of the reels, you see a ladder, and each scatter appearing during free spins, moves you up the ladder. You can win a max of 12,000X your bet!