Millionaire Mystery Box has been designed by BigTimeGaming (published on Nov. 6, 2019), which is a Medium-high volatility243 paylines (fixed) slot. The top possible win is x12000 and the RTP equals 96.64 %Free spins, Wild, Scatter, Multiplier, Double-up (gamble) feature are applied in the gaming of this release.

Millionaire Mystery Box 2


  • The RTP of this slot is common (96.64 %).
  • You can win a lot of cash (x12000).
  • Fascinating to play due to numerous features (Free spins, Wild, Scatter, Multiplier, Double-up (gamble) feature).
  • Reliable software provider.
  • Available on iOS/Android devices.


  • The slot provides rather poor graphics.
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