Game Stats
- Provider: Big Time Gaming
- RTP: Shown in-game
- Min Bet: £0.20
- Max Bet: £2.00
- Paylines: –
- Reels: 5
Game Overview
Millionaire Mystery Box is a slot game set against a sleek backdrop, featuring a range of colourful symbols such as gemstones, cards, and mystery boxes. With five reels and a clear layout, it offers a straightforward playing experience inspired by popular quiz show themes. Bets start at just 20p.
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Introducing The Game
Millionaire Mystery Box is a 5-reel video slot featuring 243 ways to win.
How To Play
Select your stake by clicking the left and right arrow buttons on the stake. The stake value is displayed in the stake display. All payouts are multiplied by the stake of each individual spin.
Start The Spin
Press the Play button to start the spin at the stake displayed. The 5 reels will spin and then come to a stop, displaying the result.
x2 Wild
Wild appears on Reels 2, 3, and 4 and substitutes for all symbols except Scatter. All wins are doubled for every Wild.
Mystery Boxâ„¢
Mystery Box appears on Reels 2, 3, and 4. Mystery Box will open to reveal another symbol. Whenever 2 or 3 Mystery Box symbols appear, they all turn into the same symbol. All wins are determined after the Mystery Box symbols have turned into other symbols.
Gamble Feature
Every win will enable the Gamble button. Press Gamble for the opportunity to go Double or Nothing up to 5 times with every win. In some cases the Gamble Feature may be disabled.
Scatter
Get 3, 4, or 5 Millionaire Scatters to win 7, 12, or 20 Free Spins, respectively. Scatter pays any.
Free Spins
A Multiplier Ladder with 12 rungs is enabled. Triggering with 3, 4, or 5 Scatters commences the Multiplier Ladder on Rungs 1, 2, or 3, respectively.
All wins are multiplied by the highlighted Multiplier. Every Scatter that occurs in the Free Spins increments the Multiplier Ladder by 1 rung. Every rung awards an additional Free Spin except rungs 4, 8, and 12, which award an additional 3 Free Spins.
Return To Player (RTP)
The Return to Player (RTP) is the theoretical statistical percentage of the total money bet in a game that is paid out as winnings over time. Values are calculated initially by dividing the total payouts by the total bets from a simulation of numerous game rounds. Values reflect the maximum expected RTP and do not change.
The RTP value is shown in-game.
Millionaire Mystery Box Demo & Free Play Guide
Searching for a Millionaire Mystery Box demo or Millionaire Mystery Box free play version is a common step for players who want to test a slot before playing for real money. While we do not provide demo access here, this page offers a detailed explanation of the game’s features.
You’ll learn about the core mechanics, bonus rounds, and symbol functions that define Millionaire Mystery Box. This overview helps you understand how the game plays and what makes it appealing, without requiring free play access.
Think of it as your preview: a way to evaluate whether Millionaire Mystery Box matches your playing style without having to make a deposit in a real-money environment.
*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.