RTP
96.93
Release date
01/2021
Min bet
£0.20
Free spins
Yes
Variances
San Quentin 2
Layout
5x3
Game type
Slots
Game provider
Nolimit City
Max bet
£1.00
Bonus rounds
Yes
Max win
x150000
Volatility
High
New customers online only. Only valid with code B10GET200 on registration. £/€10 min stake on slots and receive 200 Free Spins on Big Bass Splash. Free Spins credited within 48 hours of meeting qualifying criteria. 7-day expiry on code and Free Spins. One per customer. 18+. Full T&Cs apply. Gambleaware.org.
18+ GambleAware.org
T&Cs apply.
The San Quentin slot immerses players straight into California’s infamous max-security prison, and it’s as grim as it sounds. The slot features barbed wire, concrete walls, and a cast of dodgy inmates who look like they’d shank you for a pack of cigs. The 5x3 grid sits in a prison yard, with cartoonish but gritty visuals that mirror a comic-book style with a dark twist. Animations are sharp, symbols split and explode when you hit features, and the hip-hop soundtrack with filthy guitar riffs gives it a rebellious, outlaw vibe. It’s intense, immersive, and a bit unsettling, but that’s what makes it stand out.

The return to player in slots is 96.03%, which is decent, though it can hit 96.95% with the Bonus Buy outside the UK. The slot volatility is off the charts and insanely high, so wins are rare but can be massive, with a max win of 150,000x your stake, one of the biggest you can find out there. It starts with 243 ways to win, but features can crank that up.
Nolimit City, the provider, is known for pushing boundaries with slots, and this 2021 release ranked 37th in the Clash of Slots’ Best New Slots of 2021. There are no major awards yet, but it’s a cult hit. UK players can access this slot at licensed casinos.
New players only, £10+ fund, free spins won via Mega Reel, 65x bonus wagering req, max bonus conversion to real funds equal to lifetime deposits (up to £250), T&Cs apply
18+ GambleAware.org
T&Cs apply.
The San Quentin slot is packed with features that keep the action chaotic. Here’s the rundown:
Free Spins: Also known as Lockdown Spins, this feature can be triggered by 3+ guard tower scatters.
Scatters: Guard towers kick off the free spins, while 1-2 turn into wilds and unlock Enhancer Cells.
Wilds: Regular wilds substitute for all but scatters, Split Wilds split symbols on a reel, and Jumping Wilds in free spins move randomly with multipliers up to 512x.
Enhancer Cells: Locked cells at the top and bottom of reels open randomly or with scatters, revealing high-paying symbols, wilds, Razor Splits, or xWays.
xWays: These split a reel’s symbols, revealing 4 stacked identical symbols to boost win ways.
Razor Split: Doubles all symbols on a reel, or twice if it lands in both top and bottom cells.

Land three, four, or five guard tower scatters, and you’re in Lockdown Spins. Before it starts, Enhancer Cells on the triggering reels open, revealing a random number of spins and a multiplier on a random inmate symbol. You’ll get one, two, or three Jumping Wilds, which hop to new spots with each spin and can multiply wins by up to 512x if they hit a Razor Split. Enhancer Cells stay active, chucking out wilds, xWays, or splits, and another scatter adds more spins or wilds. It’s a frenzy, and hitting the 150,000x cap stops the round.

Split Wilds can land on any reel in the base game or free spins. When they do, they split all regular symbols on that reel in two, doubling the symbol count and boosting your win ways. They don’t split themselves or other wilds, but they’re a game-changer for racking up bigger combos, especially when paired with Enhancer Cells or xWays.

First deposit only. 100% Bonus Match up to £20. Min deposit £10. Credited within 7 days. 10x wagering, £20 max conversion. Max one claim per player. 18+. Full T&Cs apply.
18+ GambleAware.org
T&Cs apply.
It’s straightforward to play. Pick your bet, 20p to £32 per spin, and hit the spin button on the 5x3 grid. Wins need 3+ matching symbols from left to right, starting at reel 1. Here’s the symbols for a max bet:

Low-Payers: Toilet paper, lighter, shiv, handcuffs, and soap. Pays 0.2x to 1.2x for five.
High-Payers: Five inmates (Beefy Dick, Loco Luis, Biker Bill, Heinrich 3rd, Crazy Joe), and pays 2.5x to 5x for five, Beefy Dick’s the top dog.
Wilds: Regular and Split Wilds, sub for all but scatters.
Scatter (Guard Tower): 3+ trigger Lockdown Spins.
Bonus Symbols: xWays, Razor Split, appear in Enhancer Cells.
Adjust your bet with the coin icon, or use autoplay for up to 1000 spins (no Quick Spin in the UK). Check the paytable for exact payouts.
Ready to serve some time? Here’s our best bookmaker casinos in the UK with Nolimit City’s San Quentin slot:
Bet365
Ladbrokes
Wanna try it risk-free? Most online casinos offer a San Quentin free slot demo; just look for “play for fun” or “demo” mode. Nolimit City’s official site has one too, so you can spin the San Quentin slot without spending a penny.
Playing on your phone? It’s bang-on. Nolimit City builds for mobile, so the San Quentin slot runs smoothly on Android or iOS. The 5x3 grid fits your screen, buttons are easy to tap, and the visuals stay crisp, even when symbols split like mad. Whether you’re on the train or the bus, it’s a seamless buzz.
The San Quentin slot is a beast, and this San Quentin slot review shows why it’s a must-spin. With a breathtaking 150,000x max win that's hard to find in most slots, a gritty prison theme that pulls no punches, and features like Lockdown Spins and xWays that keep you on edge, it’s built for thrill-seekers. The high volatility means it’s not a casual bet, but when it hits, it hits hard.
Nolimit City nailed the vibe, from the dodgy inmates to the hip-hop beats, plus it’s a cracker on mobile too. If you’re up for a wild ride, then you should give this prison slot a go.
Author
As a seasoned content writer and copywriter specialising in iGaming, Tim Mirroman brings over 8 years of expertise in crafting high-quality, engaging content that resonates with diverse audiences. With a strong passion for the iGaming industry, he has developed a unique understanding of the sector's nuances and trends. Tim worked with numerous iGaming brands and platforms, creating content that drives player acquisition, retention, and conversion.
No. Nolimit City is legit, with MGA and UKGC licenses, and UK casinos run it through RNG checks to keep it fair.
New customers online only. Only valid with code B10GET200 on registration. £/€10 min stake on slots and receive 200 Free Spins on Big Bass Splash. Free Spins credited within 48 hours of meeting qualifying criteria. 7-day expiry on code and Free Spins. One per customer. 18+. Full T&Cs apply. Gambleaware.org.
18+ GambleAware.org
T&Cs apply.