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Mental Slot Machine

NoLimit City's Mental is a highly volatile and frightening asylum-themed video slot with a 3-2-3-2-3 layout and 180 win ways. Mental is a Nolimit City-created online slot game with a variety of additional features, including split symbols, nudges, free spins, and multipliers. The game has an extremely volatile gameplay and a return to player rate of 94.08%. Mental offers a jackpot of 66,666 times the initial wager.
  • 108Paylines
  • £0.20Min. Bet
  • £4Max. Bet
  • £6,841Biggest Win
  • No LimitProduced by
  • 5Reels
  • 2D/3D, Bonus BuyGame Theme
  • NoJackpot

Mental Game Descriptions

The initial impressions are a montage of old-fashioned asylums, anatomical drawings from the Victorian era, therapy that borders on torment, and Hannibal Lecter. If you're expecting a denouement, there is none. Mental takes psychiatric care extremely seriously.  It may not permanently terrify you like certain slasher films, but it comes as close as any slot ever has. With regards to slot machine themes, Nolimit City tends to be very creative. This software developer has previously released games set in graveyards and prisons; however, Nolimit City's most recent offering seems a touch morbid. The setting of Mental resembles a torture chamber. 

The complexity of this game is such that it is equally overwhelming to read about it and to witness it unfold. It will take some time before you can fully comprehend what is occurring. As is typical for this developer, the maths model is rock solid, and cracking the 66,666x potential comes with a disturbing amputation win limit story that has been censored in some markets. In Mental, you're in for a ride unlike any other, and burning the midnight gasoline may not be the best idea if you want to sleep well afterwards.

How to Play Mental Slot Online

The Mental slot machine has 5 reels, and there are 108 different ways to win when you play it. Because the reel format is 2x3x3x3x2, it is the same as the popular Tombstone game that can be found at Nolimit City. Because of the many different mechanisms that are in play, there are over one billion different ways to come out on top.

  • The game Mental is played on a grid that is 3 by 5, and there are 108 different ways to win. The xWays and xSplit features, on the other hand, can give you a greater number of opportunities to emerge victorious. On a spin, for instance, there is a chance that you will come across a Fire Frame. This will cause anywhere from one to thirteen symbols to break apart into two separate ones.
  • If you land 3, 4, or 5 matching symbols wilds on neighbouring reels from left to right, beginning with the reel on the leftmost position, you will have created a winning combination.
  • There is a choice of betting levels from 0.20 to 70 per spin.
  • If you want to learn more about the game and how much money you stand to win by playing it, it is in your best interest to check out the regulations and the paytable.

Mental Features

The awesome features can be a bit spine chilling. They are Fire Frames, Dead Patient, Enhancer Cells, Mental Transform, Autopsy Free Spins, Lobotomy Free Spins and Mental Free Spins.

Fire Frames

When the reels are spun in the primary game, 1 to 13 positions will receive fire frames at random. Each symbol that lands inside a frame of fire will divide into two symbols.

Dead Patient

The Dead Patient feature is activated when two Dead Patient symbols appear. Then, one of the patient symbols will receive a 5x, 10x, 15x, 30x, 50x, 100x, 200x, 500x, 1000x, or 9999x multiplier. The symbol's multiplier is proportional to the number of symbols it contains.

Mental Transformation

The Mental Transform feature is activated when an arachnid symbol appears on reels 2 or 4. This spider symbol will then transform into a wild, deceased patient, patient, xWays, or xSplit symbol.

Autopsy Free Spins

If you land three scorpion symbols, the Autopsy Free Spins bonus is triggered. These symbols can only appear on reels 1, 3, and 5. You will then receive eight spins, plus one additional spin for each scorpion symbol that was contained within a fire frame.

When using these spins, up to five positions will receive fire frames per spin. These will then remain during the remaining spins, and you can also effectively activate Mental Free Spins or Lobotomy Free Spins within this feature.

Lobotomy Free Spins

Lobotomy Free Spins are triggered by landing three scorpion symbols and one spider symbol. You will then receive 9 spins, and each symbol that lands inside a fire frame will grant you an additional spin.

If you turn the reels during the Autopsy Free Spins feature and a spider symbol appears, the remaining spins will be Lobotomy spins and you will receive one additional spin.

The spider symbol becomes sticky, meaning that the Mental Transform feature will be activated with each turn. Within the Lobotomy Free Spins feature, it is also possible to participate in the Autopsy Free Spins' features.

Dead Multiplier

Throughout the spins, the number and multiplier of each deceased symbol with the highest value will be collected. Where, for example, three patient-4 symbols with 10X, 15X, and 30X are present, the multiplier for the patient-4 is 30X. Once this deceased multiplier has been gathered, its multiplier will be applied to newcomers of the same symbol type, with the count size determining the number of individuals who can participate. Each time a patient symbol receives a deceased multiplier, the count decrements by 1.

Enhancer Cells
These enhancer cells are located at the bottom of the second and fourth reels, and are activated through four and six fire frames, respectively. These enhancer cells are able to reveal six distinct symbols.

Mental Symbols

The lower-paying symbols are depictions of the hand, lungs, heart, brain, and eye. All symbols are set on a material resembling leather, which makes it even creepier when a knife begins to cut them during certain scenes. Five of the same symbol type returns between 1X and 1.25X the wager. The most valuable symbols are patient symbols with the ratio patient 5 to 1. The payout for landing five of the same symbol type ranges from 1.5X to 5X the wager. The yellow cranium with a W on its forehead serves as the game's wild symbol, substituting for other paying symbols to increase the chances of winning. You can also land symbols for spiders and scorpions, which serve as scatters. The tombstone is a symbol of the deceased patient's exceptional qualities. Determine the functionality of the features.

Patient 1

Has a max win of 5x

Patient 4

Has a max win of 2x


Has a max win of 1.15x


Has a max win of 1x



Patient 2

Has a max win of 3.75x

Patient 5

Has a max win of 1.5x


Has a max win of 1.1x

Ways Symbol




Patient 3

Has a max win of  2.5x


Has a max win of 1.25x


Has a max win of  1.05x

X Symbol


Frequently Asked Questions

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What is the minimum and maximum bet for Mental?

The minimum bet is £0.20 and the maximum bet is £4.

What is the RTP of Mental?

The RTP is 96.08% which is the market average.

Can I play Mental on mobile?

Yes, you can play on any android or iOS mobile device.

What is the biggest potential win for Mental?

The biggest potential win is 66,666 times the initial stake to additional fear factor.

Who is NoLimit City?

NoLimit City has managed to stretch the envelope and shock the online gambling industry with some of the most inventive and outrageous games available.

Play Mental on Slingo

Step into a chilling world of psychological twists in the Mental slot game. Be entranced by its deeply immersive gameplay, spine-tingling horror theme, and spine-chilling opportunities for enormous wins! Unlock the darkest corners of your gaming experience on Slingo - the epitome of a seamless interface, an asylum of game choices, and an impenetrable fortress of security.

Mental Game Highlights

Slot Name





Fire Frames, Dead Patient, Enhancer Cells, Mental Transform, Autopsy Free Spins, Lobotomy Free Spins and Mental Free Spins.


Horror Asylum





Slot Provider

Nolimit City

Slot Name




Monsters Unchained



 x2 or x3, x4 or x5, or x6 or x7





Book of Madness



50x-1,500x the bet

Pumpkin Smash



between 2x and 7x

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V: 1.52.2 All rights reserved. January 2020