|Nolimit City|2021-08-31|RTP: 96.08 %
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Game provider
Nolimit City
Feature Buy
Game type
Video Slots
Mobile version
Grid slot
Sticky wilds
Free spins
Bonus game
Very high
Progressive jackpot
Min. bet
Random Feature
Max. bet
Maximum win
Last update
August 29, 2021


2 votes - 4.00/5.00

Go insane and explore the darkest corners of your mind on the unhinged slot from Nolimit City. Mental features xWays, xSplit and xNudge with symbol enhancers and splitting symbols, wilds plus nudging wilds, mystery symbols, sticky symbols and multipliers with countdown multipliers of up to x9999. Add this into random mechanic triggers plus three different bonus rounds with possible upgrades and you could escape insanity with wins of up to 66,666x your bet.

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Slot Details

Mental is a video slot with 5 reels of a 3, 2, 3, 2, 3 format with 108 ways to pay as standard, increasing up to 20 rows, with Extreme ways. Wins are awarded for matching three or more symbols from left to right on adjacent reels in any position starting from the leftmost reel. You can strap yourself in for psychiatric treatment from 0.20 credits through 70 credits per spin. This game has a 10/10 extreme volatility rating and comes with an RTP of 96.08%. Be warned, Nolimit City makes two versions of slots designed to pay differently and Mental will also be found at 94.20% at some casinos.

Symbols are mostly designed in sepia, giving an aged effect to match the theme of psychiatric hospitals of yesteryears horror stories, which used questionable methods, sometimes barbaric, in horrific surroundings. Patient 4 is in black and white and a deep red garnishes others for a colour break. Symbols include patient photographs and drawings on parchment paper of a psychiatrists notebook. Nolimit City paints a nightmarish picture with a musical score of extreme intensity to give fans a horrific reel experience.

NoLimit City Mental base game screen capture

The pay symbols are split into two categories of Organ and Patient. Starting with the low paying organ symbols, a skeletal hand, lungs, heart, brain and eye will award up to 1.25x your stake for five of a kind. Images of the unfortunate subjects 1, 2, 3, 4 and 5 appear as the Patient symbols and will pay up to 5x your stake for five of a kind. Skulls act as the wild symbols, which substitute for all symbols except for the spider, scorpion and dead patient symbols, which trigger features.

Scorpion symbols feature on reels 1, 3 and 5 only and landing three will trigger the Autopsy free spins. Spider symbols feature on reels 2 and 4 and trigger the Mental Transform feature. Spider symbols landing in conjunction with three scorpions will trigger the Lobotomy spins for one and two additional spider symbols will activate the Mental free spins. Any split spider and scorpion symbols count as one for a bonus trigger. Dead Patient symbols are almost black with greyscaled patient tombstones, and landing two of these will trigger the Dead Patient multiplier feature.

Mental Slot Features

Not many game studios compare to Nolimit City when it comes to creativity and styling a theme. From humble beginnings in 2013, it was evident a special team of developers were in the making. With slots like Tombstone, Punk Rocker and San Quentin achieving classic status amongst players, let’s see just how far their innovative style and mechanics have come in this feature-packed release.

Nolimit City Mental Autopsy Spins screen capture

At the base of the play area, beneath reels 2 and 4, two counters reach up to 4 and 6. Named Enhancer Cells, these work in conjunction with fire frames. Fire Frames appear at random at the start of each spin. From 1 to 13 positions on the reels are framed with fire and symbols that land inside will be split into two. Land enough fire frames to max the counters and reveal a symbol or one of three Boosters in the enhancer cell:

  • Patient: One of the five patient symbols is revealed.
  • Dead Patient: A dead patient symbol is revealed.
  • Wild: A regular wild symbol is revealed.
  • xWays: Reveals three symbols of the same kind except for scorpion, spider and dead patient symbols, to expand the reel height. If there is more than one xWays symbol on the reels, the same symbol will be used for all xWays on that spin.
  • xSplit: Activating xSplit will split one symbol on each reel into two. The enchancer cell will split into two wild symbols.
  • xNudge Wild: This booster will nudge a wild into full view and increase a win mulipllier +1 for every nudge. Several wild multipliers active during one spin will mutliply each other for a final value before being applied to the win.

Land two dead patient symbols for a chance of activating the Dead Patient feature during both the base game and free spins. This feature will trigger a random multiplier of x5, x10, x15, x30, x50, x100, x200, x500, x1000, up to a sane-mind-blowing x9999. The multiplier is then applied to a selected patient symbol.

Spider and Scorpion symbols trigger one of three free spins bonuses when landing in various combinations or during Autopsy and Lobotomy spins to trigger upgrades to Lobotomy or Mental free spins. Spider symbols also trigger the Mental Transform feature during the game when landing and change themselves into Patient, Dead Patient, Wild, xWays or xSplit symbols.

Land three Scorpion symbols to trigger 8 Autopsy Free Spins. Any scorpions landing in fire frames will award +1 spin. For each spin of the bonus, one to five reels will receive a Fire Frame that sticks for the remainder of the feature. Scorpion symbols are removed during this bonus and landing one or two spider symbols will trigger the Lobotomy or Mental spin bonuses, respectively.

Lobotomy Free Spins are activated by three scorpions and a spider to award 9 free spins. Landing one spider during Autopsy spins will upgrade any remaining spins to Lobotomy spins and award +1 spin. Any scorpion or spider symbols in fire frames will add a further spin each. For this feature, along with the sticky fire frames, the Spider symbol stays sticky and awards a Mental Transform feature for each spin.

Nolimit City Mental Mental Free Spins Bonus screen capture

This round will also Include the Dead Multiplier, a multiplier generated from any Dead Patient triggers. Only the highest multiplier from each dead patient symbol will be collected along with its symbol count. For example, if three Patient 1 symbols are revealed with varying multipliers of x5, x30 and x500, the multiplier transferred to the dead multiplier will be x500. The count of 3 will be also be added.

The highest multiplier and the symbol count will be transferred to its patient symbol, displayed aside from the play area on an image of the patient to form that patient symbol’s dead multiplier. Patient symbols that land with an active dead multiplier will have their multiplier applied and its count reduced by one. Though triggered through the Dead Patient feature, no dead multipliers will be applied to symbols generated from it and dead multipliers apply only to standalone patient symbols.

Land 3 Scorpions and 2 Spiders on the reels to trigger a round of 10 Mental Free Spins, or two spider symbols from the Autopsy spins will upgrade any remaining spins and +2 spins. One spider symbol during Lobotomy spins will upgrade any remaining spins and +1 spin. Any scorpion or spider symbols within a fire frame award +1 spin. Besides retaining the features described from the Lobotomy spins, both spider symbols stay sticky and award a Mental Transform feature on each spin. During this feature, the Dead Multiplier count does not decrease and will only improve its multiplier.

Bonus Buy ranges from 80x stake up to 1000x your stake for instant access to the free spins round. There are four options:

  • Autopsy Spins: 80x stake that will trigger from 8 – 11 spins with an RTP of 96.26%.
  • Lobotomy Spins: 230x stake that triggers from 9 – 13 spins with an RTP of 96.17%.
  • Mental Spins: 1000x stake that triggers from 10 – 15 spins with an RTP of 96.68%.
  • Lucky Draw Random Bonus: 232x stake that triggers either of the free spins bonuses with the following chances – 50% Autopsy Spins, 40% Lobotomy Spins, 10% Mental Spins. The Lucky Draw comes with an RTP of 96.42%.

Final Verdict

Mental is an apt title in more ways than one for such a game. Only the brave, foolish, or possibly mental would Bonus Buy for 1000x stake on a self-titled ‘Extreme’ volatility slot. To fully understand the rules could send you barmy, and simply playing the game will bring a level of bewilderment for a fair number of spins. The number of features and bonuses that can play and trigger in different ways is also truly crazy.

Still, at first glance, Mental is brilliantly produced by Nolimit City with industry-leading design and creativity. There is nothing like it, and Mental is a game with plenty of depth, depth of theme, depth of features, three different bonus rounds and plenty of head-scratching moments which might drive you mad trying to follow the action of splitting symbols, extra ways and dead multipliers.

Mental – Frequently Asked Questions (FAQ)

1. Will Mental by Nolimit City be found in different paying versions of Return To Player?
2. Does Mental by Nolimit City use different reel sets for the base game and bonus rounds?
3. What happens if a game crashes during a feature or win on Mental?


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