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NoLimit City · Slot Review

Folsom Prison — Full Review & Free Demo

4.2/5
Play for Real →
RTP
96.07%
Volatility
High
Max Win
75,000x
Provider
Reels
5
Paylines
16 - 46664
Bet Range ($,€,£)
0.20 - 120
Rating
4.2/5
Released
Jun 2022

Folsom Prison Slot Overview

Folsom Prison is a prison-themed slot from Nolimit City, built on 5 reels with a locked grid that can open from a tiny 16 ways up to 46,664 ways on a 4-6-6-6-4 layout. What grabbed me straight away was how cramped and tense it feels, then suddenly opens up when the right symbols land. It is proper moody stuff, with a bluesy rock soundtrack and a much grimmer vibe than a lot of slots.

I found it a bit harsh in the base game, fair enough, but that is the point here. RTP is 96.07% on the better version, volatility is very high, and the max win is 75,000x. If you like relaxed low-risk spins, this probably is not your mate. If you do not mind dry patches and want something with nasty little surprises, it has plenty going on.

Folsom Prison Slot Information

Starts are very tight here. Only the 2 middle positions on reels 1 to 4 are active at first, so you begin with 16 ways to win. Wilds, scatters, xSplit and xWays symbols open the nearest locked spots above and below where they land, and that is how the grid grows. When it fully opens, you get the 4-6-6-6-4 setup and 46,664 ways.

Wins pay for matching symbols on adjacent reels from the left. I quite like this expanding setup because it keeps ordinary spins from feeling totally dead, though the base game can still drag a bit. You can stake from 0.20 to 100, and the Toast Bet option costs 20% extra to guarantee a scatter on reel 2.

Folsom Prison Slot Features

Scatters land on the middle two rows on reels 2 to 5 in the base game. Two scatters open the middle two positions on reel 5, and if no more arrive they turn into an xWays, xSplit, wild or Cockroach Nest Wild. Three scatters trigger Walk the Line, while four scatters trigger The Chair. Both bonus rounds give 8 free spins.

xWays can land anywhere and turn into 2 to 4 matching symbols. xSplit lands on the middle rows of reels 2 to 5, splits the whole row, doubles the ways there, then turns into 2 wilds. If a scatter gets split on the trigger, you get an extra free spin. That little detail is decent, and it can make the entry feel a bit better.

Cockroaches are the proper hook. A Cockroach Nest turns wild first, then the roach walks over the reels adding multipliers of x1, x2, x3 or x10, and it can unlock barred positions on the way. In Walk the Line you start on a 2-4-4-4-2 setup with at least 1 Cockroach per spin. In The Chair you start on 4-4-4-4-4 with at least 3 Cockroaches per spin, and that is usually where the game gets properly lively.

Bonus Buy Options

Bonus Buy Toast Bet
Toast Bet
Costs 20% extra and guarantees a scatter on reel 2 in the base game.
Feature Cost: 20% extra bet
Bonus Buy <nlp>Walk the Line</nlp>
Walk the Line
Triggered by 3 scatters and awards 8 free spins on a 2-4-4-4-2 starting setup with at least 1 Cockroach guaranteed each spin.
Feature Cost: 68xRTP: 96.36%
Bonus Buy <nlp>The Chair</nlp>
The Chair
Triggered by 4 scatters and awards 8 free spins on a 4-4-4-4-4 starting setup with at least 3 Cockroaches guaranteed each spin.
Feature Cost: 1500xRTP: 96.31%
Bonus Buy Lucky Draw 99:1
Lucky Draw 99:1
Random bonus buy with a 99% chance of Walk the Line and 1% chance of The Chair.
Feature Cost: 82xRTP: 96.46%
Bonus Buy Lucky Draw 80:20
Lucky Draw 80:20
Random bonus buy with an 80% chance of Walk the Line and 20% chance of The Chair.
Feature Cost: 355xRTP: 96.20%
Bonus Buy Lucky Draw 50:50
Lucky Draw 50:50
Random bonus buy with an even chance of either free spins mode.
Feature Cost: 784xRTP: 96.33%

Folsom Prison Slot Features

Pays are not huge from the normal symbols alone, so I would not come here for the paytable. Low symbols are 10 to A, paying 0.3x to 0.9x for five of a kind. The premium inmate symbols pay 1x to 2.5x for five, with CASH as the top one. That tells you a lot about the slot, really, the base symbols are there to support the mechanics, not carry the session.

There are two wild types, the standard wild and the Cockroach Nest Wild, and both substitute for paying symbols. The scatter is the prison badge symbol, and then you have the special xWays and xSplit symbols doing most of the heavy lifting. I liked the look of the inmate symbols and the whole sepia prison style, even if it is a bit bleak after a while.

Symbol Payouts

icon 1
5x2.5
4x1.2
3x0.6
icon 2
5x1.4
4x1
3x0.5
icon 3
5x1.2
4x0.9
3x0.4
icon 4
5x1.1
4x0.8
3x0.3
icon 5
5x1
4x0.7
3x0.3
icon 6
5x0.9
4x0.6
3x0.2
icon 7
5x0.8
4x0.5
3x0.2
icon 8
5x0.6
4x0.4
3x0.1
icon 9
5x0.5
4x0.3
3x0.1
icon 10
5x0.3
4x0.2
3x0.1
icon 11
Special
icon 12
Special
icon 13
Scatter
icon 14
Wild
icon 15
Wild
💬 What Players Say
Most reviews rate it as a grim, clever follow-up with standout Cockroach multipliers and strong bonus rounds. The main knock is that the base game can feel tight and dry, and the RTP can vary. Based on 6 reviews.
Ryan Cole’s Verdict

Folsom Prison Slot Verdict

Ends up being one I respect more than I would call an easy casual pick. The soundtrack is excellent, the prison atmosphere is heavy, and the Cockroach feature gives it its own identity. When the grid opens, multipliers spread about, and the bonus round gets a few roaches going, it can be a proper riot.

Still, I would be honest with a mate and say the base game feels stingy at times, and not everyone will enjoy how claustrophobic it starts. For a relaxed session, it is only a decent shout if you already like high-volatility slots and do not mind waiting for the fun bits. If that sounds like you, Folsom Prison is well worth a look.
4.2
★★★★☆
out of 5
✓ Pros
Cockroach feature is genuinely memorable
Two free spins modes feel different
Grid expansion keeps spins interesting
75,000x max win is proper big
Soundtrack and atmosphere are very decent
✗ Cons
Base game can feel cramped
Very high volatility is not for everyone
Bonus Buy not available for UK players
Different RTP versions are a bit annoying
Ryan Cole
Ryan Cole
Lead Casino Slots Analyst
5+ years analysing online slots for the UK market. Every game is played for a minimum of 500 demo spins before publication. No affiliate bias — ever.
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Folsom Prison FAQ
How does the locked grid work in Folsom Prison?
Each spin starts with only the 2 middle positions on reels 1 to 4 active, so you begin on 16 ways. Wilds, scatters, xSplit and xWays open the nearest locked positions above and below, and the grid can grow to 4-6-6-6-4 with 46,664 ways.
What triggers Walk the Line and The Chair?
Three scatters trigger 8 Walk the Line free spins, and four scatters trigger 8 The Chair free spins. Scatters appear on the middle two rows of reels 2 to 5 in the base game.
What is the difference between Walk the Line and The Chair?
Walk the Line starts on a 2-4-4-4-2 layout and guarantees at least 1 Cockroach each spin. The Chair starts on a 4-4-4-4-4 layout and guarantees at least 3 Cockroaches each spin, so it is the stronger bonus by a mile.
How do Cockroaches and Cockroach Nests work?
A nest turns into a wild, then the Cockroach walks across the reels adding multipliers of x1, x2, x3 or x10 to positions it crosses. In free spins, extra nests can be activated by a Cockroach, which upgrades its multiplier, and a 2-egg nest can also clone another Cockroach once per bonus round.
Is there a Bonus Buy, and can UK players use it?
Yes, there are buys for Walk the Line at 68x, The Chair at 1500x, plus random lucky draw options from 82x to 784x. Reviews note that the buy feature is not available for UK players.