JDB

Mahjong Wins: Master

Play Mahjong Wins: Master slot by JDB for free in demo mode! Explore RTP, bonus rounds, and key features before playing for real.

This 100,000× max win sits in the top 1% of the catalog.

SlotRanker Score

/ 99

05099

The SlotRanker Score is calculated from the visible data below. It is not affected by affiliate deals, and it cannot be bought.

How this score is built

RTP

96.72%

return to player

Volatility

Medium volatility

variance

Max win

100,000×

top multiplier

Min bet

—

per spin

Reels

—

grid

Player rating

4.7 ★

20 votes

DEMO Play free, no signup

JDB

Embed on your site

4.7 / 5

20 ratings

User ratings are shown separately from the Slot Score unless stated otherwise.

Five weighted signals shape the composite. Four context signals refine ties. See how we rate for the full methodology.

Payouts & RTP9/10

RTP 96.72% → 9.0/10

Volatility8/10

medium → 8.0/10

Win Potential10/10

x100000.00 (100000×) → 10.0/10

Features2.5/10

2 features → 2.5/10

Game Mechanics2.5/10

f=2 → 2.5/10

Context signals (tie-breakers)

Layout—

—

Bet Flexibility—

—

Provider Reputation5.2/10

provider avg 5.2 → 5.2/10

Popularity5/10

synthetic proxy → 5.0/10

Popularity blends real player search demand (~30 markets) with a catalogue-derived proxy; games without measurable search demand use the proxy alone. Not live play telemetry.

Cite this score

SlotRanker Score: 63 — Mahjong Wins: Master by JDB

https://slotranker.com/jdb/mahjong-wins-master#score

How to cite

Spec sheet

Mahjong Wins: Master at a glance.

Identity

Slot nameMahjong Wins: Master

StudioJDB

Released10/29/2026

Math

SlotRanker Score63

RTP96.72%

VolatilityMedium volatility

Max win100,000×

Bet range—

Player rating4.7 / 5 · 20 votes

Format

Reels—

Paylines—

Layout—

Features

Themes

Expected average based on this slot's 96.72% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$2.62

Cost per session$2.62

Estimate only, for entertainment purposes — treat gambling as entertainment, not a way to make money, and set a budget you can afford to lose.

How long could a bankroll last on Mahjong Wins: Master? We simulate thousands of sessions from this game's published RTP and volatility — the long-run math, not a prediction of your next spin.

Bankroll ($)Bet per spin ($)Speed

Volatility tier: Medium

Running simulation…

How this works

Each simulated spin either misses or returns a win drawn from a log-normal distribution, with the hit rate and spread set by the slot's volatility tier (Medium). The model is calibrated so the average return equals this slot's published RTP (96.72%), with wins capped at its top multiplier (100,000×).

This is a simplified, parametric model of the game's math — not its real paytable. It exists to make the house edge visible over many sessions, so the numbers above are averages across thousands of runs, never a forecast of one.

This is math, not a prediction. Real sessions vary wildly, and no strategy changes a game's built-in house edge. Play for fun, set limits, and never bet more than you can afford to lose.

Where to play Mahjong Wins: Master

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Compare Mahjong Wins: Master with other games

	Mahjong Wins: Master Score 63This game	Le Darkchaun Score 81	Peking Luck Score 76	Of Sabers and Monsters Score 76	Volcano Riches Score 73
Identity
Studio	JDB	Hacksaw Gaming	Pragmatic Play	Yggdrasil Gaming	Quickspin
Released	10/29/2026	—	7/30/2018	9/8/2022	3/7/2018
Math
RTP	96.72%	97.52%	95.5%	94%	96.43%
Volatility	Medium volatility	Medium volatility	High volatility	High volatility	Medium volatility
Max win	100,000×	15,000×	180,000×	14,755×	—
Format
Reels	—	6	5	6	5
Layout	—	6x5	5x3	6x4	5x3
Paylines	—	—	25	4096	40
Min bet	—	0.05	0.5	0.2	20
Max bet	—	50	250	50	—
Features
Progressive	—	—	—	—	—
Wild symbol	—	✓	✓	✓	✓
Free spins	✓	✓	✓	✓	✓
Scatter symbol	✓	✓	✓	—	✓
Multiplier	—	✓	✓	✓	—
Bonus game	—	—	✓	—	✓
Respins	—	—	—	✓	—

Every number is shown as a delta against Mahjong Wins: Master.

Comparing against

Mahjong Wins: Master

JDB

RTP

96.72%

Max win

100,000×

Score

+ Wild+ Multiplier+ Bonus Game

Of Sabers and Monsters

+ Wild+ Multiplier+ Respins− Scatter

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