Big Time Gaming
Millionaire Mystery BoxMillionaire Mystery Box · Released 2019.11.06
NEWBonus buy available243 waysMax 47,200x
8.0/10
AI Slot ratingEXCELLENT
★★★★★★★★★★
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Millionaire Mystery Box

Millionaire Mystery Box · Big Time Gaming
RTP96.69%
VolatilityHigh
Max win47,200x
Mechanic243 ways
Bet range0.1 – 40
Hit frequency41.18%
Bonus buyAvailable
Release date2019.11.06
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Millionaire Mystery Box Free Slot Demo review

Millionaire Mystery Box is a 243 ways licensed slot based on the world-famous quiz show “Who Wants to Be a Millionaire.” It has a clean, land-based casino machine feel and relatively simple rules, making it easy for anyone to enjoy. It was released on November 6, 2019, and you can play the free demo right away with no sign-up.

What kind of player is Millionaire Mystery Box suited for?

Built on a 243 ways structure, this is a game designed with all types of players in mind. It has a smooth, land-based casino machine feel and relatively simple rules, so even players put off by complex Megaways can start comfortably. It’s a licensed title where the quiz show Millionaire and the math model of Big Time Gaming slots meet once again.

How does the Mystery Box symbol change?

Mystery Boxes appear on reels 2, 3 and 4 and reveal hidden symbols. When 2 or 3 boxes land together, they open as one and the same symbol, so the middle reels can line up as a single symbol and widen the win. The x2 wild, which doubles wins, can also appear on the same reels, so spins where boxes and wilds overlap are especially promising.

How many times can you use the double-up gamble?

Every time you win, the gamble button lights up, and pressing it lets you try Double or Nothing, where you either double your win or lose it all. You can gamble up to 5 times in a row on a single win. According to the official description, the total win from free spins can also be gambled, keeping the tension of sitting in the hot seat intact. Just note that if you lose, you forfeit the whole win, so it’s best to use it carefully.

How does the multiplier ladder free spins climb?

3, 4 or 5 Millionaire scatters start 7, 12 or 20 free spins respectively. There’s a 12-step multiplier ladder, and each time you collect a scatter during free spins you climb one step and receive extra spins and a higher multiplier. The more scatters you get, the more the multiplier and expected win grow together. The starting number of spins also varies greatly depending on the number of scatters.

What should I check first in the demo?

The is 96.69%, volatility is high (8.5/10), and the max win is 47,200x. The hit frequency is a high 41.18%, so the flow of the base game is quite smooth. Bonus buy is fairly cheap at 45x for 7 free spins, so try buying it several times in the demo to see how many steps the ladder climbs.

Pros

  • Simple, clean 243 ways gameplay
  • Cheap bonus buy at 45x
  • The climb of a 12-step multiplier ladder

Cons

  • Overusing the gamble makes it easy to lose wins
  • Less on-screen change than the Megaways family

Millionaire Mystery Box Free Slot Demo full specs

ProvidersBig Time Gaming (Big Time Gaming)
Release date2019.11.06
RTP
Volatility
Reel layout6×3
How wins workCluster
Max win
Bet range0.1 – 40
Bonus Buy
Hit frequency
Free spin odds–
Max win odds–
Featuresx2 Wilds, Mystery Box™, Gamble Feature, Free Spins, Bonus Buy

Key features

FEATURES
x2

x2 Wild

Appears on reels 2, 3 and 4 and doubles your wins.

🎁

Mystery Box

2 to 3 boxes open as one and the same symbol.

🎲

Gamble Feature

You can try Double or Nothing up to 5 times per win.

12

Multiplier ladder

Collect scatters to climb the 12-step ladder and earn multipliers and spins.

Frequently Asked Questions

FAQ

Is Millionaire Mystery Box an officially licensed game?

AI SlotYes, it’s a licensed slot based on the quiz show “Who Wants to Be a Millionaire.”

What is the RTP of Millionaire Mystery Box?

AI SlotThe RTP is 96.69% and the hit frequency is 41.18%.

What's the most free spins I can get?

AI Slot5 scatters give you 20 spins from the start, and more spins are added as you climb the ladder.

What's the bet range?

AI SlotYou can bet from 0.1 to 40.