Thunderspin

Joker Jack

RARE Slots Classic Slots Joker Classic Fruit Gems Retro Strawberry

Play Joker Jack slot by Thunderspin for free in demo mode! Explore RTP, bonus rounds, and key features before playing for real.

Only 0.3% of slots combine 10 Paylines and Low Volatility.

SlotRanker Score

/ 99

05099

The SlotRanker Score is calculated from the visible data below. It is not affected by affiliate deals or paid placement.

How this score is built

RTP

95.5%

return to player

Volatility

Low volatility

variance

Max win

1,000×

top multiplier

Min bet

$0.10

per spin

Reels

10 lines

Player rating

4.8 ★

13 votes

DEMO Play free, no signup

Thunderspin

Embed on your site

4.8 / 5

13 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 & RTP8/10

RTP 95.5% → 8.0/10

Volatility6/10

low → 6.0/10

Win Potential6/10

x1000.00 (1000×) → 6.0/10

Features4.5/10

6 features → 4.5/10

Game Mechanics4.2/10

f=6 r=5 p=10 → 4.2/10

Context signals (tie-breakers)

Layout6/10

5x3 → 6.0/10

Bet Flexibility6/10

0.1–100 (×1000) → 6.0/10

Provider Reputation6.9/10

provider avg 6.9 → 6.9/10

Popularity0/10

synthetic proxy → 0.0/10

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: 52 — Joker Jack by Thunderspin

https://slotranker.com/thunderspin/joker-jack#score

How to cite

Spec sheet

Joker Jack at a glance.

Identity

Slot nameJoker Jack

StudioThunderspin

Released5/28/2017

Math

SlotRanker Score52

RTP95.5%

VolatilityLow volatility

Max win1,000×

Bet range$0.10 – $100.00

Player rating4.8 / 5 · 13 votes

Format

Reels5

Paylines10

Layout5x3

Features

Themes

Expected average based on this slot's 95.5% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$1.80

Cost per session$1.80

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 Joker Jack? 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: Low

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 (Low). The model is calibrated so the average return equals this slot's published RTP (95.50%), with wins capped at its top multiplier (1,000×).

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.

Compare Joker Jack with other games

	Joker Jack Score 52This game	Jackpot Jester Wild Nudge Score 59	Star Joker Score 52	Million 777 Bells Score 66	Super Joker Score 65
Identity
Studio	Thunderspin	NextGen	Play'n Go	Red Rake Gaming	Pragmatic Play
Released	5/28/2017	8/10/2015	10/6/2018	10/31/2024	9/17/2019
Math
RTP	95.5%	95.1%	94.23%	95.4%	95.51%
Volatility	Low volatility	Medium volatility	Low volatility	—	Medium volatility
Max win	1,000×	—	5,000×	—	1,500×
Format
Reels	5	3	5	6	3
Layout	5x3	3x3	5x3	6x3	3x3
Paylines	10	5	10	1000000	1
Min bet	0.10	0.10	0.10	0.40	0.05
Max bet	100.00	1000.00	100.00	40.00	25.00
Features
Progressive	—	✓	—	—	—
Wild symbol	✓	✓	✓	✓	✓
Free spins	✓	✓	✓	✓	✓
Scatter symbol	✓	✓	✓	✓	—
Multiplier	—	—	—	✓	✓
Bonus game	—	✓	—	✓	—
Respins	—	—	—	✓	✓

Every number is shown as a delta against Joker Jack.

Comparing against

Joker Jack

Thunderspin

RTP

95.5%

Max win

1,000×

Score

Jackpot Jester Wild Nudge

+ Progressive+ Bonus Game

+ Multiplier+ Bonus Game+ Respins

+ Multiplier+ Respins− Scatter

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