Millionaire Mystery Box

Millionaire Mystery Boxslots

Big Time Gamingplayed on 9 casinos we readofficial RTP 96.64%–96.69%

Observed RTP vs officialpaid ÷ wagered over the sampled bets, with a 95% band

24h
82.84%±47.9
415 bets—
7d
95.47%±45.5
7,565 bets−0.1σ
30d
83.61%±38.0
11.2K bets−0.7σ
90d
83.61%±38.0
11.2K bets−0.7σ
All
83.61%±38.0
11.2K bets−0.7σ
Per casino, 30d
94.12%±11.2410.8K bets
247 bets · below min
77 bets · below min
12 bets · below min
5 bets · below min
-0.5%65.5%131.5%
The marker is the RTP each casino publishes for this game. An amber bar means that figure is outside the 95% band of what we observed there; grey bars are below the minimum sample.

This gameall sampled bets

Bets
11,388
Wagered
$15.8K
Paid
$26.5K
Max multiplier
354.0x
Max payout
$2,064
normal−0.1σPast observed results over 30d: −0.1σ below the official RTP. Every spin is independent.

Official RTPas published by the studio and each casino

Big Time Gamingbeta.bigtimegaming.com96.69%
DegenCitydegencity:game.payout96.64%not a studio figure
Duelduel:games.rtp96.69%
Duelbitsduelbits:games.payout96.69%
Gambagamba:games.house_edge96.64%not a studio figure
Metawinmetawin:game.rtp96.69%
Rainbetrainbet:games.payout96.69%
Razedrazed:game.rtp96.64%not a studio figure
Rollbitrollbit:static.games96.69%
Shuffleshuffle:game.edge96.69%
Spartansspartans:games.rtp96.64%not a studio figure
Stakestake:kurator.edge96.64%not a studio figure
Thrillthrill:games-state.rtp96.64%not a studio figure
Winnawinna:game.rtp96.69%

Game factsfrom beta.bigtimegaming.com

A 6×3 cluster-pays slot with medium volatility and wins up to 47,200× the bet, released in November 2019.

RTP
96.69%
Volatility
Medium
Bet range
€0.10 – €40
Layout
6 × 3 · cluster pays
Released
Nov 2019

Max win 47,200x, not hit in the feeds since 2 Nov 2026

  • Free spins
  • Bonus buy
  • Gamble

Demos aren't available in your country. We hide demos where casino links are hidden, and in the UK.

Multiplier distribution30d, sampled bets

11,176 sampled spins, 40% of them paid something.

1 in 73
sampled spins paid 10x+
6 spins
paid 100x+, too few to put a 1-in-N figure on
0 spins
paid 1000x+ in this sample
Studio volatility
Medium
Observed swings
Compared once a slot has 20,000 sampled spins staked $0.10 or more in this window; this one has 11,074.
From 11,176 sampled spins; a small sample swings a lot, and every spin is independent. Bar height is square-root scaled so the rare high buckets stay visible. Hover a bar for the count.

Where it is played30d, share of sampled wagering

BC.Game$8,578247 bets · 76%
Spartans$2,30110.8K bets · 20%
500 Casino$38777 bets · 3%
Duel$12.9412 bets · 0%
Rainbet$0.905 bets · 0%

When players play30d · sampled bets by UTC hour and weekday, since 2 Nov 2026

MonTueWedThuFriSatSun
Busiest hour: Mon 22:00–23:00 UTC with 655 bets; busiest time of day: 22:00–23:00 UTC; busiest day: Sun. Observed on the public feeds we read, a sample: when people were seen playing, not when anyone should. Hours are UTC.

Biggest hitslargest payouts we saw on this game

Millionaire Mystery BoxBig Time Gaminguser-1eabda$1,0321,719,312 500CASINO_BUX$2,064edge 3.3% · exp. −$34.162.00x
Millionaire Mystery BoxBig Time Gaminguser-1eabda$176293,992 500CASINO_BUX$1,412edge 3.3% · exp. −$5.848.00x
Millionaire Mystery BoxBig Time GamingSolidrobben$42.0039.74 XRP$1,344edge 3.3% · exp. −$1.3932.00x
Millionaire Mystery BoxBig Time GamingSolidrobben$140132.31 XRP$1,120edge 3.3% · exp. −$4.638.00x
Millionaire Mystery BoxBig Time Gaminguser-1eabda$6.009,996 500CASINO_BUX$1,032edge 3.3% · exp. −$0.20172.0x
Millionaire Mystery BoxBig Time GamingSolidrobben$126126 USDC$1,009edge 3.3% · exp. −$4.178.00x
Millionaire Mystery BoxBig Time Gaming$1,35114.5 SOL$171edge 3.3% · exp. −$44.720.13x
Millionaire Mystery BoxBig Time Gaming$1.001 USD$134edge 3.3% · exp. −$0.03133.6x
Millionaire Mystery BoxBig Time Gamingn***$0.181 BRL$64.62edge 3.4% · exp. −<$0.01354.0x
Millionaire Mystery BoxBig Time Gamingn***$0.362 BRL$41.21edge 3.4% · exp. −$0.01113.4x

Live RTP by casino30d, refreshes on reload

#CasinoObserved RTPOfficialDev.BetsWagered
1Spartans94.12%±11.296.64%−0.4σ10.8K$2,301
2BC.Game81.17%±49.5——247 bets · below min$8,578
3500 Casino77.69%±22.2——77 bets · below min$387
4Duel16.19%±18.896.69%—12 bets · below min$12.94
5Rainbet0.00%±0.0096.69%—5 bets · below min$0.90

About Millionaire Mystery Boxfrom the figures on this page

Millionaire Mystery Box is a Big Time Gaming slot. Over the last 30 days we observed 11,162 bets on it at 9 crypto casinos, returning 83.61% (95% band 45.65%–121.58%) against an official RTP of 96.64%–96.69%. Its highest multiplier in the last 30 days was 354.0x. The biggest win we saw on it paid $2,064 (2.00x) at 500 Casino on 8 Nov 2026. Over the last 30 days it was played most, by wager, at BC.Game, Spartans and 500 Casino.

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