Folsom Prison Slot Review (NoLimit City)

RTP: 96.07%

Provider: Nolimit City

Best casinos: All British Casino, Kwiff Casino, Dream Vegas, Grand Ivy Casino, Las Vegas Casino

Folsom Prison Key Features

RTP: 96.07%

Provider: Nolimit City

Volatility: Insane

Theme: Prison

Reel style: 5 Reels

Paylines: 46664

Stakes: £0.20 - £120

Max Win: 75,000x


Free Spins





Folsom Prison is another Prison themed game from Nolimit City with the second visit to jail set in the 1880 established Folsom State Prison. Folsom State Prison is the second oldest prison after San Quentin, which Nolimit City also made a game themed on and the first in the USA to have electricity.

As with many of these latest releases from Nolimit City this game has an extreme volatility rating which means there won’t be as frequent hits but when it does it’s usually big.  

The Max Win in Folsom Prison is 75,000x with Nolimit City never shrinking when it comes to massive Max Wins on their games with the other prison game from them, San Quentin xWays, having 150,000x Max Win.

There are two Bonus Features in Folsom Prison with 3 scatter symbols in the base game triggering 8 Walk The Line spins. 4 Scatter symbols lands 8 The Chair spins which is the super bonus in this game.

Casinos that offer Folsom Prison slot sorted by RTP

100% up to £300 + 25 bonus spins on Starburst

  • Wagering req. 35x
  • Value/free spin £0.10
  • Offer amount £302.50
18+. New players only. One bonus offer per player. Minimum deposit £20. Max bonus bet is £5. Bonus spins on selected games only and must be used within 72 hours. Bonus funds must be used within 30 days otherwise any unused bonus shall be removed. Bonus funds are 100% match up to £300 on your 1st deposit. Bonus funds are separate to Cash funds, and are subject to 35x wagering the total bonus & cash. Only bonus funds contribute towards any wagering requirements. Terms apply.
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Wager on any slot & get 200 Real Money Free Spins!

  • Wagering req. 0x
  • Value/free spin £0.10
  • Offer amount £20
New customers only, wager £20 on slots and get 40 cash free spins for 5 consecutive days. £20 stake on slots each day within 5 days of 1st deposit to qualify. £0.1 spins on Book of Dead. £250 total max withdrawal. Full T&Cs apply.
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100% Welcome Bonus up to £200 + 30 Free Spins on Book of Dead

  • Wagering req. 40x
  • Value/free spin £0.10
  • Offer amount £203
New players only. Opt-in Required. Wager from real balance first. 40X wager the bonus and the winnings from free spins. Contribution varies per game. Selected games only. Wager calculated on bonus bets only. Bonus valid 30 Days from receipt/free spins valid for 7 days from issue. Max conversion for free spins: £100. Excluded Skrill and Neteller deposits. Withdrawal requests voids all active pending bonuses
#ad. 18+,, T&Cs Apply

100% Match Bonus up to £300 + 150 Bonus Spins

  • Wagering req. 35x
  • Value/free spin £0.10
  • Offer amount £315
Max bonus bet £5. Offer: 100% bonus match on 1st deposit + bonus spins. Value of bonus & number of spins depend on deposit amount: £20-£100: max £100 bonus + 50 spins on selected games; £101-£200: max £200 bonus + 100 spins on selected games; or £200+: max £300 bonus + 150 spins on eligible NetEnt Games. Winnings from spins credited as bonus and capped at £100. Bonus funds are separate to Cash funds, and are subject to 35x wagering the total bonus & cash. Only bonus funds contribute to wagering requirement. Bonus funds expire within 30 days; bonus spins within 72hrs. Affordability checks apply.
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100% up to £100 + Always 10% Cashback!

  • Wagering req. 35x
  • Value/free spin -
  • Offer amount £100
#AD New customers only, min deposit £20, wagering 35x, max bet £5 with bonus funds. Max bonus is 100% up to £100. No max cash out on deposit offers. Welcome bonus excluded for players depositing with Skrill or Neteller. Cashback is cash with no restriction. Full T&C’s apply
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100 Spin Test

This 100 Spin test was updated by Steve Madgwick on 29/5/2023 

100 spins is not a Real Test

We give every slot a 100 spin test to see just what it can do, or not as the case can often be - 100 spins is no reflection of the likelihood of any other 100-spin session, as RTP's are set over many millions and probably billions of spins. So this 100 spin test is just for entertainment and insight purposes

Element Outcome
Session RTP 23.20%
Win Frequency Medium 24/100
Biggest Base Game Win 7x
Spins to Bonus n/a
Bonus Paid n/a
Time Taken for 100 Spins 7:13

The Spin Test criteria can be found at the bottom of the page

Test Comments

Very little happened in this 100 spin test of NoLimit City's Folsom prison slot, providing just a 23.3% RTP against the theoretical 96%+ - With just 24 Winning spins from 100 tested, taking a little over 7 minutes, the return average £1 per win, with the biggest base game win coming in at 7x

There were 3 bonus baits, but outside of that, this was one of the most uneventful 100 spin test slot reviews I have yet to undertake. 

However, we have to consider this is indicative of the volatility level of this slot, which NoLimit City have set at 'INSANE'!

Folsom Prison Expert Review

Theme & Symbols
Bonus Features
Max Win (75,000x)
Sounds & Music
RTP (96.07%)

Game Data

A brutal prisoner meets us in the opener to Folsom Prison with one of the toughest prisons in the world featured in this slot from Nolimit City. Johnny Cash’s influence can be felt all over this game with the country singer helping make Folsom Prison famous with his live performances there. 

There are 16-46664 win ways in this game with so many ways to win with multiple features to activate. The slot itself is a 5-reel, 2-2-2-2-0 row setup that can eventually expand to 4-6-6-6-4.

Stakes in this game start at 20p and go up to £120 with the RTP set to 96.07%. 

OLBG has a huge list of the best online slots ranked and reviewed by experienced slot players.

 Slot Review Key Features
Studio NoLimit CIty
Theme Prison
RTP % 96.07%
Volatility Insane
Reel Style 5 Reels
Paylines 16 - 46664
Stake Range £0.20 - £120
Max Win 75,000x
Special Symbols Wild Symbol, Cockroach Nest, Scatter, xSplit, xWays
Features Walk the Line, and The Chair Free Spins
Jackpot None

Graphics, Music, and Sound Effects

Instantly as you load into Folsom Prison you realise that Nolimit City has gone for a grittier look at the US prison system compared to their San Quentin xWays game which was much brighter. Folsom Prison’s main logo features a prisoner with Cash tattooed on his forehead, seemingly supposed to be Johnny Cash, who sang about Folsom Prison Blues all the way back in 1955.

Folsom Prison uses a Johnny Cash inspired soundtrack to really set the mood for you in this one with the classic Cash guitar noise the backing track here. A Johnny Cash sounding singer feeds you with lines from his songs too including “Bad luck wind been blowing at my back” from Cash song Thirteen.

The main premium symbols in this game look to be various prisoners in Folsom Prison. Wild and Cockroach Nest symbols are also common in this game. The cockroach wilds can go anywhere in Folsom Prison but their nest opens up in the positions on the 3 middle reels. Any locked cell on the reels that they go over opens up. That starting position for the cockroach turns into a wild with multipliers added to any symbol that it passes over.

Key Features

As with all of our slot game reviews it’s important that we go through the different features in the game so that we really get to grips with it before we play.

We’ll go through the Folsom Prison theme as well as telling you the best features in the game.

Theme – Prison

Folsom Prison follows a similar theme that we’ve seen in slots before and does fully feel like the sequel to San Quentin xWays in terms of a similar style to the game.

The game throws itself into the Johnny Cash theme with his style of music and even the main character in the game having CASH Tattooed across his forehead.

There is a feature in this game called Toast Bet which costs 20% extra on top of your normal stake. What this does though is guarantees you a scatter symbol on the second reel to give you an even greater chance of landing the bonus.

You’ll see basic symbols of 10, J, Q, K and A in this game with Premium Symbols featuring different inmates from Folsom Prison.

Cockroaches play a big part in Folsom Prison with their nests always spawning in the open positions in the middle 3 reels or transformed from a Scatter symbol. The starting position of the cockroach is replaced by a wild, with the cockroach walking all over the reels adding multipliers to any symbol that it passes over. Cockroach nest symbols can land in the bonus but they aren’t active until the Cockroach walks over it, with that Cockroach then carrying further multipliers.


Folsom Prison features 5 reels & 2-2-2-2-0 rows.


There are 16-46664 paylines in Folsom Prison. 


As with every slot game one of the most important bits of information is the Return to Player and it’s no different with Folsom Prison. The RTP in this game is 96.07%.

As always this percentage is not the same everywhere and online casinos often alter these figures according to their current policies. To spare you the trouble, we shared a list of UK casinos where you can play this game and the respective RTPs found there.

For an even more informed decision, we advise you to check our reviews and read about the casino's welcome bonuses and deals, game libraries, customer care, payment options, and other things available in each casino.

Casino RTP% Review
All British Casino 96.07 Read Now
Kwiff 96.07 Read Now
Dream Vegas 96.07 Read Now
The Grand Ivy 96.07 Read Now
Las Vegas Casino 96.07 Read Now

Several top-ranking operators have the Folsom Prison slot in their offer, and many of them include a solid RTP for this title. Those who want to try other releases in well-established casinos should check the list of slot sites we recommend.

Stake Range

The stake range will always vary from different sites with some capping the stake with its INSANE volatility but the Nolimit City site states stakes from 20p to £120.

Max Win

The Folsom Prison online slot limits the maximum win at 75000x the player’s bet. This then shows you the Meet Your Maker max win screen.

Free Spins

There are two free spin bonuses available in Folsom Prison with the base free spins given the name of Walk The Line. These free spins start with the centre 2-4-4-4-2 rows open and a minimum of 1 guaranteed cockroach. This bonus is triggered by landing 3 scatter symbols with 8 spins awarded. 

The second bonus is the so-called ‘Super’ bonus called The Chair which is trigged by ladning 4 scatter symbols in the base game, with each spin starting with the centre 4-4-4-4-4 rows open and a minimum of 3 cockroaches guaranteed. You can also get into The Chair bonus by landing a scatter symbol on reel 5 in the Walk The Line bonus.


The Folsom Prison online slot game doesn’t have a jackpot prize but does have a Max Win of 75,000x available to be won in a single spin.

OLBG has a page where you can find the best jackpot slot games if you are genuinely interested in such titles with big jackpots available.

Play Experience & First Impressions

The Folsom Prison experience is a great one with the game instantly getting that classic Nolimit City vibe to it with xWays, xSplit and xBet features all adding to what is another strong release. The Toast Bet feature where you can decide to pay an extra 20% on top of your stake for a guaranteed scatter symbol makes you feel like you’re getting value for that extra money which is always a bonus.

The volatility score of Insane in this one is evident while you’re spinning with wins rare to come about, but that does make a difference with those extra toast bet spins with the guaranteed scatter giving you a better chance of landing wins. The xWays and xSplit symbols though definitely enhanced the game as well as the Cockroach feature which is one that really feels new and fresh.

With San Quentin having that 150,000x max win it was always going to be hard to copy in Folsom Prison but this game has used features from that one and ran with them in style. Similar to San Quentin though the prison bars at the top and bottom of the reels being closed regularly can make you feel like you’re missing so much. When they eventually open on win spins though you get to really see the potential that this game has.

Editorial Information

Folsom Prison slot review was written by the OLBG Slots Content Team, beginning with Andrej Trajkovski, who has worked in the online gambling industry since 2013, playing and reviewing online slots and casinos daily for the past four years. 

Contributing to the review was Jake Ashton, a slots fan who is also part of the casino and sports betting team here at OLBG and Jenny Mason with Online Casino, Bingo and Slots Experience from over 15 years in the industry. 

The review is Fact Checked by William Westerlund, an online casino expert reviewing casinos and slots for over five years, and published by Steve Madgwick, our Editor-In-Chief with over 18 years of experience creating and managing high-quality sports betting and Casino content for OLBG & multiple other publications and a self-confessed online slots fans who has played at 100's of the best slot sites online and completes the Spin tests.

100 Spin Test Criteria

The 100 Spins test is undertaken on a demo slot, staking 100 spins at £1 per spin

Session RTP - Return to the player after 100 spins - Eg, A return of £45 from 100 spins is 45%, or a return of £107 is 107%

Win Frequency - A winning spins to spins frequency, higher frequency regardless of prize, is often more entertaining.

  • 0-10 Very Low
  • 11-15 Low
  • 16-30 Medium
  • 21-35 High
  • 36+ Very High

Biggest Base Game Win  - Highest single base game spin winning value

Spins to Bonus - How many spins were completed before the main bonus round was achieved

Bonus Paid - Value of bonus once complete

Time Taken  - How long did the 100 spins take to complete?

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