JDB
Mahjong
Play Mahjong slot by JDB for free in demo mode! Explore RTP, bonus rounds, and key features before playing for real.
RTP
—
return to player
Volatility
—
variance
Max win
—
top multiplier
Min bet
$0.00
per spin
Reels
5
25 lines
Player rating
4.6 ★
1 votes
Why this score
Sparse data (43%) — interpret with cautionFive weighted signals shape the composite. Four context signals refine ties. See how we rate for the full methodology.
Payouts & RTP—
no data
Volatility—
no data
Win Potential—
no data
Features6/10
7 features → 6.0/10
Game Mechanics10/10
f=7 r=5 p=25 → 10.0/10
Context signals (tie-breakers)
Layout6/10
5x3 → 6.0/10
Provider Reputation5.7/10
provider avg 5.7 → 5.7/10
Popularity2/10
synthetic proxy → 2.0/10
DEMO Play free, no signup
JDB
Spec sheet
Mahjong at a glance.
Math
Index score60
RTP
Max win—
Bet range$0.00 – $0.00
Player rating4.6 / 5 · 1 votes
Format
Reels5
Paylines25
Layout5x3
Features
Themes
Compare Mahjong with other games
 Mahjong Score 60This game |  Coin Cat Score 71 |  243 Fruity Zen Score 60 |  Lucky Tigers Score 75 |  Lucky Mahjong Score 48 | |
|---|---|---|---|---|---|
| Identity | |||||
| Studio | |||||
| Released | 5/5/2018 | 5/1/2020 | 11/11/2024 | 1/20/2022 | 12/8/2021 |
| Math | |||||
| RTP | — | — | — | 96.14% | 92.79% |
| Volatility | — | — | — | — | — |
| Max win | — | 500× | 500× | — | — |
| Format | |||||
| Reels | 5 | 5 | 5 | 5 | 5 |
| Layout | 5x3 | 5x3 | 5x3 | 5x3 | 5x3 |
| Paylines | 25 | 50 | 243 | 20 | 25 |
| Min bet | 0.00 | 0.50 | 0.25 | 0.60 | 1.00 |
| Max bet | 0.00 | 500.00 | 50.00 | 1600.00 | 10.00 |
| Features | |||||
| Progressive | — | — | — | — | — |
| Wild symbol | ✓ | ✓ | ✓ | ✓ | ✓ |
| Free spins | ✓ | ✓ | ✓ | ✓ | ✓ |
| Scatter symbol | ✓ | ✓ | ✓ | — | ✓ |
| Multiplier | ✓ | — | — | ✓ | ✓ |
| Bonus game | — | ✓ | — | — | — |
| Respins | — | ✓ | — | — | — |
Every number is shown as a delta against Mahjong.
Comparing against
Mahjong
JDB
RTP
—
Max win
—
Score
60
Coin Cat
Dragoon Soft
RTP
—
Volatility
—Max win
500×
Score
71▲+11
+ Bonus Game+ Respins− Multiplier
243 Fruity Zen
Mascot Gaming
RTP
—
Volatility
—Max win
500×
Score
60same
− Multiplier
Lucky Tigers
CQ9 Gaming
RTP
96.14%
Volatility
—Max win
—
Score
75▲+15
− Scatter
Lucky Mahjong
Cayetano Gaming
RTP
92.79%
Volatility
—Max win
—
Score
48▼−12
Same feature set
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