About the game
Millionaire Mystery Box is a slot by Big Time Gaming. It has a 6×2×7 grid, an RTP of 96.64%, high volatility and a maximum win of 12,000× the stake.
For more high-volatility slots with Free Spins from Big Time Gaming, see Big Bucks Deluxe and Bonanza Falls.
Strengths
- Above-average RTP (96.64%)
Keep in mind
- High volatility — long dry spells are normal
How to play Millionaire Mystery Box
Setting up
Millionaire Mystery Box is a video slot by Big Time Gaming. The game is played on a 6×2×7 grid. To start, choose a stake within the limits your casino offers and press spin. Each spin is independent, and its outcome is decided by a random number generator.
How wins work
Wins are formed when matching symbols land in the positions defined by the game rules. Features listed for this game: Mystery Box, Free Spins, Wilds and Jackpot. Wilds: wild symbols substitute for others to complete wins. Jackpot: a fixed or growing top prize on top of normal wins. The paytable inside the game shows what each symbol pays at your current stake.
Bonus round
Bonus features: Massive Free Games Multiplier and Unlimited Retriggers.
What to expect
Volatility is rated high. The maximum win is 12,000× the stake. The RTP is 96.64%. RTP is a long-term average over a very large number of spins, not a promise for a single session. Details that are not listed here have not been confirmed by our sources yet, so this guide leaves them out rather than guessing.
Written from the verified facts on this page · How we check data
Screenshots
Special symbols & features
- X2 Wild
- The x2 Wild appears on reels 2, 3 and 4, substitutes for all symbols except Scatter and doubles wins it is part of.
- Mystery Box
- Mystery Box symbols on reels 2, 3 and 4 open to reveal another symbol.
- Gamble Feature
- After a win you can press GAMBLE to try to double your winnings up to five times or lose them.
- Scatter Free Spins
- Three or more Millionaire Scatters award 7, 12 or 20 free spins and Scatters pay anywhere.
- Free Spins Multiplier Ladder
- During free spins a 12-rung multiplier ladder up to x50 is active, increasing by one rung for each Scatter and awarding extra spins on certain rungs.
- Winning Symbols Rules
- Wins pay left to right from the leftmost reel on consecutive reels except Scatter, with payouts multiplied by stake and malfunctions voiding pays and plays.
Game controls
- Stake up
- Increases the stake value.
- Menu
- Opens the in-game menu.
- Spin
- Starts a spin at the current stake.
From the game’s own rules screen, checked · How we check data
How the game works
Free Spins
A bonus round of spins that cost nothing, usually triggered by scatters.
Wilds
Wild symbols substitute for others to complete wins.
Jackpot
A fixed or growing top prize on top of normal wins.
Bonus features
- Features
- Massive Free Games Multiplier, Unlimited Retriggers
Where to play Millionaire Mystery Box in Kenya
Millionaire Mystery Box was seen in 1 of 11 lobbies of the operators we checked for Kenya (last lobby check ). Our partners are listed first, then the other operators by name, those listed in the GRA register first. Payment methods are as named on each operator's own pages or, where we could not verify the site as official, on the site we read.
| Operator | Licence in Kenya | Payments | Min. deposit | Action |
|---|---|---|---|---|
 Betpawaseen in lobby |
Licensed by GRA (Kenya) | M-Pesa, Airtel Money, Bank transfer | KES 2 | View review |
Our partners are listed first; we may earn a commission if you sign up through their links. It does not change the facts shown. There are no partner links in this list yet. Affiliate disclosure · How we check casinos · All casinos in Kenya
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