Free slot demos with plain-language reviews

Mystery Box Demo

Mystery Box slot cover art
Play for real money
Our score
—
RTP
90.2%
Volatility
—Not published
Max win
—Not published
Grid
—
Lines
—

Mystery Box Review

Mystery Box keeps its idea simple: land five Mystery Box symbols and you open boxes, with up to four attempts, for random prizes or a multiplier.

Base game

The wild substitutes for every symbol except the bonus symbol and pays 50×, 100× and 500× the line bet. Lines pay from left to right, with only the highest win per line counted.

Mystery Box Features

Open the box

The bonus shows five mystery boxes, and you get up to four attempts. Each box gives a random prize or a multiplier bonus; the counters in the centre track winnings and the multiplier.

RTP

The configuration lists 90.2%, while its stated range is 90.6% to 93.3%.

Mystery Box Pros and Cons

Strengths

  • Simple bonus
  • Multiplier bonus

Limitations

  • Bonus needs five symbols
  • RTP around 90–93%

Our Verdict

Mystery Box is a short, simple WMG game for quick sessions.

Mystery Box FAQs

How many boxes can you open?

Up to four of the five.

What can a box contain?

A random prize or a multiplier bonus.

How do you trigger the bonus?

Land five Mystery Box symbols.

Sources and game-version notes

Information checked 31 October 2026.

Rules and RTP come from the embedded game's own rules and configuration files, read on 31 October 2026.