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Mental Slot Nolimit City

Mental Review – Editor’s Impressions

The Mental game is one of the craziest online slots we’ve seen. It features multipliers of up to 9,999x your stake, transforming symbols, innovative features like xWays and xNudge, and Free Spins. Pair these and you might trigger the maximum win of up to 66,666x your bet.

Our favourite thing about the Mental slot machine is the bonus features, especially the Free Spins rounds. However, like many slots with bonus rounds, this game has extreme volatility. 

There’s only one way to understand what this game is about: reading our in-depth Mental slot review. It also includes a list of the best gambling sites to play the Mental real money version.

Overview Of Mental Game

The Mental slot machine is a five-reel game created by Nolimit City. The slot features 108 ways to win that can be improved with splitting symbols and other mechanics that increase the number of symbols, such as xWays and xSplit.

To trigger a win, players must land three or more matching symbols in three consecutive reels, starting from the first position on the left. You can bet between £0.20 and £100 on the Mental game.

The game features frightening symbols, including five patients and organs like eyes, brains, hearts, kidneys, and bones. You’ll also find Dead Patient symbols that can reveal multipliers. You can try the Mental real money version to understand how everything works.

Mental RTP, Payout, And Volatility

With a value of 96.08%, the Mental RTP corresponds to the market average. The Mental slot machine volatility is extremely high. This means winning combinations are hard to land but are usually valuable. 

The payouts for the game’s symbols range from 0.10x to 5x your stake, depending on the number of consecutive characters obtained. The maximum win is 66,666x your wager. 

Mental Graphics And Gaming Experience

Many UK players choose online slots based on their graphics. Therefore, our online slots reviews always include a section dedicated to the game's graphics and sounds. As you can tell by its name, Mental is themed after a sanatorium. 

On top of terrifying patient and organ symbols, the Mental slot machine features flickering lights and an eerie soundtrack. The result is an immersive game that will give you the chills.

Mental Bonus Features

The slot is packed with various features, including Fire Frames, Dead Patients, Enhancer Cells, and Mental Transform. Up to 13 random positions can get a Fire Frame on every spin. Symbols within the frame are split in two.

The Dead Patient feature is activated if two or more Dead Patient symbols land on the reels, revealing a patient with a multiplier of 5x, 10x, 15x, 30x, 50x, 100x, 200x, 500x, 1,000x, or 9,999x. The multiplier value depends on the number of symbols on the reel.

The second and fourth reels have an Enhancer, a special position activated by landing four or six Fire Frames, respectively. Enhancer Cells can reveal one of five modifiers: a Patient or Dead Patient symbol, three matching symbols and increased reel height, split Wilds, or a nudged Wild and 1x multiplier for every nudge.

Then, there’s the Mental Transform feature, which is activated by landing a Spider symbol on the second and fourth reels. Spider symbols can transform into patient symbols, Wilds, Dead Patient symbols, xWays, or xSplit.

Mental Free Spins

If you try the Mental slot demo, you’ll notice the game has three Free Spins features – Autopsy, Lobotomy, and Mental. Here’s how each of these bonus rounds works:

Autopsy Free Spins is triggered by landing three Scorpion symbols, rewarding players with eight Free Spins. Scorpions can only appear on the first, third, and fifth reels. Up to five positions can get a sticky Fire Frame on every spin.

Players can improve this bonus to Lobotomy or Mental Free Spins by landing one and two Spiders, respectively. Doing so rewards players with one or two additional Free Spins.

Lobotomy Free Spins is a bonus activated by landing three Scorpions and one Spider. The round starts with nine Free Spins. During this feature, Spiders become sticky, triggering the Mental Transform resource on every spin.

In addition, the highest multiplier for each Dead Patient symbol is accumulated on the right of the reels. If a matching symbol lands on the reels, the multiplier is added to its corresponding symbol. Transferring a multiplier lowers its value by one.

Mental Free Spins is the ultimate bonus feature of the Mental slot machine. You’ll have to land three Scorpions and two Spiders to activate it. The difference with this round is that both Spider symbols are sticky, triggering Mental Transform twice. In addition, transferred multipliers aren’t decreased.

What Are The Pros And Cons Of Playing Mental?

Check out some of the pros and cons of playing this game at a  Mental online casino:


  • Maximum win of 66,666x your bet
  • The Mental RTP is a decent 96.08%
  • Maximum bet of £100


  • Extremely high volatility

Where To Play Mental Online

Like other Nolimit City slots, finding an online casino to play the Mental real money version is effortless. We recommend checking our Nolimit City casinos list or signing up at Casino Extra.

Summary Of Mental – Insane Payouts Of Up To 66,666x Your Wager

Mental is an excellent game. The bonus features are highly entertaining and work well together, providing players with a huge winning potential. The game’s maximum win of 66,666x your stake is impressive, as it’s higher than many jackpot slots.

We recommend trying the Mental slot demo or playing this game at a Mental online casino.

Play game
Software Nolimit City
Slot Type Video slots
RTP 96.08%
Special feature Wild Scatter Free Spins
top10 Slot details
top10 More slot details More details
  • Software
    Nolimit City
  • Slot Type
  • Paylines
  • Reels
  • Min Coins Size
  • Max Coins Size
  • Jackpot

  • RTP
  • Bonus Game
  • Progressive
  • Wild Symbol
  • Scatter Symbol
  • Autoplay Option
  • Multiplier
  • Free Spins
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Mental Slot Reviews by Players


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blondie 1633 reviews
Reviewed on October 31, 2022


Mental is a slot from Nolimit City that was released many months ago. To be honest, I never thought I would be writing this review as I've had a dislike for this game ever since it came out/ was advertised. I had seen multiple streamers doing high bonus buys and getting big wins and even maximum wins. And I used to like Nolimit City a lot so I decided to give the game a try.

To start off, I know Nolimit City likes to push boundaries with their games and mechanics but for me the game design for this slot is something I can't comprehend. The color scheme is extremely dark and monotone and for the most part it's very difficult to see what's even going on. But maybe that's for the best as the game theme is about mental patients which I personally don't feel comfortable with.

As for the mechanics, the slot has 108 ways to win yet there's the splits feature which can split certain symbols and increase your ways to win. Then there are 3 free spins bonus rounds- Lobotomy, Autopsy and Mental Free Spins. I've had the Mental Free Spins a few times and I can easily say that for my taste they're too volatile. In the free spins, every time you get a golden patient icon, it will add a multiplier to a patient symbol. And ultimately even 3oak with a patient that has a multiplier can pay well. Well, let me be honest- in several bonus features I haven't had any big win from a patient multiplier, only from regular symbols being split with the Split feature.

Overall I don't think this is a game I would recommend to try. It's extremely volatile and wins are possible yet very difficult to come by. The bonus buys are very expensive and the theme itself for me personally feels unpleasant. I don't see how you can enjoy spending hours on this slot due to the dark colors and the theme itself.
Fiekie247 1106 reviews
South Africa
Reviewed on September 28, 2021


Let's talk about one of the most volatile slots I have ever played in history with a decent base game that can keep a steady balance sometimes, and even take you into profit land within the base game by activating up to 9999x multipliers on Patient symbols if you land them correctly on basically a payline ( Ways ) in this instance. The game follows its name, as it is mental and one of the most frustrating issues I have with this game is the ability to bonus this game normally! Just thinking about it makes me mad already lol.

This game takes place in a Mental facility with different patience and each of them has pay values. You will find 2 boys, a young little girl, a grandmother, and some bold-headed man who is the highest paying symbol. You will win x5 your stake for a 5 of a kind combo with the top symbol.

The reels get highlighted randomly on any spin and every symbol that lands inside that space on the reels split into 2 making it more ways to benefit from. I remember playing this slot for the first time and did not know what the hell is going on, low paying symbols all looked the same at a first glance.

Splitting symbols made it difficult to see what is happening, then I just see the counter starting for the big win, wondering how did I get to that win. The reels spin, suddenly you see Splitways, Xways, Multipliers coming out of nowhere and suddenly revealing patient symbols? WTF

This slot goes on and on, and it is hard to keep track of. I just bonus buy and walk away as watching was very to understand and the paytable is like reading a casino's terms and conditions.

Entering the bonus by landing scorpions on reels 1, 3, and 5 with possible huge ants to enable enhanced bonus features – Don’t hold your breath you will take easily 500 – 1000 spins to trigger naturally, sometimes you even go 100 spins without seeing 2 scatters So rather buy and hope for the big win.

During free spins spaces on reels highlight for split symbols and extra features kick in with those ant symbols, you will benefit from Xways, Stacked multiplier wild, multipliers up to 9999x, split ways, and many more.

You can win up to 66666x your total bet and the game is not afraid of rewarding the max win either. So have fun, and may the wins be with you!

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