NoLimit City

San Quentin

RARE Slots Video Slots Action & Adventure Underworld Mafia Detective Prison

Prison action slot pairing extreme win potential with volatile reel modifiers

Only 0.1% of slots feature Xways.

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

94.11%

return to player

Volatility

High volatility

variance

Max win

150,000×

top multiplier

Min bet

$0.20

per spin

Reels

243 lines

Player rating

4.0 ★

13 votes

DEMO Play free, no signup

NoLimit City

Embed on your site

4.0 / 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 & RTP6/10

RTP 94.11% → 6.0/10

Volatility9/10

high → 9.0/10

Win Potential10/10

x150000.00 (150000×) → 10.0/10

Features10/10

23 features → 10.0/10

Game Mechanics6/10

f=23 r=5 p=243 → 6.0/10

Context signals (tie-breakers)

Layout5/10

5x4 → 5.0/10

Bet Flexibility2/10

0.2–1 (×5) → 2.0/10

Provider Reputation7.3/10

provider avg 7.3 → 7.3/10

Popularity7.2/10

search demand p70 + proxy blend (70/30) → 7.2/10

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: 73 — San Quentin by NoLimit City

https://slotranker.com/nolimit-city/san-quentin#score

How to cite

Slot Summary

Released on January 12, 2021, San Quentin puts Nolimit City's prison setting behind a high-volatility model with a 94.11% RTP and an x150000.00 ceiling. The contrast is severe: enhancer cells can expose xWays, splitting symbols, or wilds, while the free-spins route adds moving wild pressure. It is a prison slot defined less by routine hits than by how quickly reel modifiers can alter the board.

How It Plays

Each base spin uses 243 ways across five reels, but the fixed frame can change when enhancer cells open above or below individual reels. Those cells may reveal paying symbols, a Wild, Razor Split, or xWays.

Landing one or two bonus symbols opens the matching enhancer cells and converts those symbols into wilds. That interaction gives near-feature spins an immediate board effect instead of treating them as failed triggers.

Theme & Atmosphere

The Prison and Underworld labels are literal here: the setting is San Quentin, with convict imagery and a confinement motif shaping the game's identity.

Detective, Mafia, and Action & Adventure cues add a crime-story frame, but the setting remains institutional and hostile rather than resembling a polished caper.

Action & Adventure Underworld Mafia Detective Prison

Features & Win Potential

Mystery Symbols inside the enhancer cells may become premium symbols, a Wild Symbol, xWays, or Splitting Symbols. Each result changes symbol coverage rather than simply adding a fixed prize.

Walking Wilds shift position during the feature, while Additional Free Spins can extend it. Reel Modifiers remain active, so opened cells continue affecting later outcomes.

Bonus & Free Spins

The Free Spins trigger requires at least three bonus symbols. More triggering symbols supply additional starting Jumping Wilds, and the enhancer positions stay open throughout the round.

Further bonus symbols can award Additional Free Spins and more moving wilds. A Free Spins Multiplier is attached to a selected premium convict symbol before the round begins.

Spec sheet

San Quentin at a glance.

Identity

Slot nameSan Quentin

StudioNoLimit City

Released1/12/2021

Math

SlotRanker Score73

RTP94.11%

VolatilityHigh volatility

Max win150,000×

Bet range$0.20 – $1.00

Player rating4.0 / 5 · 13 votes

Format

Reels5

Paylines243

Layout5x4

Expected average based on this slot's 94.11% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$4.71

Cost per session$4.71

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 San Quentin? 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: High

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 (High). The model is calibrated so the average return equals this slot's published RTP (94.11%), with wins capped at its top multiplier (150,000×).

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 San Quentin

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Compare San Quentin with other games

	San Quentin Score 73This game	Dead Rider's Trail Score 88	The Bowery Boys Score 66	Boss Level Score 82	Payout Time Score 81
Identity
Studio	NoLimit City	Relax Gaming	Hacksaw Gaming	iSoftbet	Ino Games
Released	1/12/2021	8/24/2022	2/16/2022	7/28/2024	11/20/2023
Math
RTP	94.11%	96.2%	94.3%	96.01%	96.18%
Volatility	High volatility	High volatility	High volatility	Medium volatility	High volatility
Max win	150,000×	50,000×	10,000×	20,000×	5,000×
Format
Reels	5	6	6	5	5
Layout	5x4	6x6	6x5	5x3	5x3
Paylines	243	46656	0	1024	10
Min bet	0.2	0.2	0.1	0.2	0.1
Max bet	1	20	1	20	20
Features
Progressive	—	—	—	—	—
Wild symbol	✓	✓	✓	✓	✓
Free spins	✓	✓	✓	✓	✓
Scatter symbol	✓	✓	✓	✓	✓
Multiplier	—	✓	✓	✓	✓
Bonus game	—	✓	—	✓	✓
Respins	—	—	—	—	—

Every number is shown as a delta against San Quentin.

Comparing against

San Quentin

NoLimit City

RTP

94.11%

Max win

150,000×

Score

+ Multiplier+ Bonus Game

+ Multiplier+ Bonus Game

+ Multiplier+ Bonus Game

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