Step into the gruesome world of Mental from Nolimit City. It’s a place where patients don’t live for long. Because it seems that the goal there isn’t to cure, but to experiment and torture. But players love this slot, and after playing Mental in free mode, you’ll understand why. This dark theme comes along with thrilling gameplay that is packed with exciting features.
The atmosphere is dark and heavy. You don’t want to be anywhere near the place. But once you start spinning reels, you understand the appeal of the slot and the initial emotions will probably fade away although for some sensitive folks the visuals will probably haunt them.
The studio is known for some of its unconventional theme choices, but this slot marked the beginning of a new era, when it really decided to push the boundaries. That’s why it landed in the studios’ Over The Limit category.
Nolimit City slots are usually packed with features, and this one is not an exception. The studio used a range of its xMechanics as well as other features and three bonus games for this slot. So, you can expect an eventful experience in both main and bonus games.
One of the most exciting things about this game is that the x66,666 max win can drop in both base and bonus modes. We know this because we’ve tested the slot extensively and managed to land the top prize even in base mode.
This mix of dark, unconventional theme and thrilling gameplay earned the slot plenty of fans. The year it was released, it was 13th in the New Slots category. The following couple of years it landed 26th and 28th in the overall ratings. Our yearly ratings are based on real casino betting data. That’s why there’s no doubt that Mental is the slot that’s been played a lot.
The success of the original inspired the studio for the creation of its sequel in 2025. And for sure, there will be more installments to follow, with each new release boosting the level of insanity.
The first thing you’ll notice is an unconventional grid. Initially, it’s 3-2-3-2-3. But those shorter reels 2 and 4 can grow bigger once their Enhancer cells are unlocked. To unlock one of them, there should be 4 Fire Frames, and to have both unlocked, players need 6 Fire Frames.
Mental video slot comes with three of the studio’s signature xMechanics. Two of them are there to boost the number of icons a reel can have. xSplit doubles the symbol count per position. xWays triples the icon count per cell but reveals only regular paying symbols. These two can be revealed during Transformation and by Enhancer Cells.
The third mechanic is xNudge. It can’t be revealed by Spider icons. But it can appear when reels 2 and 4 expand. It’s a special Wild that nudges to cover an entire reel. And for every step it takes during the process, it has +1 added to its multiplier. Multiple xNudge icons combine their multipliers.
Players can trigger one of three bonus features. There’s a basic bonus pack unlocked by a trio of Scorpions. When one Spider joins them, players enjoy some extra features. And when there are not one but two Spiders along with Scorpions, the most advanced bonus is triggered.
Initially, there are 8, 9 and 10 free rounds depending on the level of the bonus. But the bonus can be extended. For every Scorpion or Spider that catches fire when the bonus is triggered, gamblers get +1 to the number of spins.
Entering a less advanced bonus means that landing one or two missing Spiders will instantly upgrade the feature. You’ll get the remaining spins +1 or +2 spins.
My personal experience with bonus upgrades isn’t that good. I didn’t get any upgrades to a better bonus. But you can play a Mental demo slot to see if you are luckier. Thankfully, there’s a feature buy option so that you can launch bonuses instantly.
Nolimit City does provide more stats than most other suppliers, but it still isn’t much. If you want to know more about this game and what to expect from it, check out the detailed stats provided on this page. We’ve made over 121 million test spins to collect the data.
At press time, Mental is 9th most volatile out of over 500 titles on our Slot Stats page. That means it’s very unpredictable within a short period of time. So, the official stats provided by the developer and our research results can greatly vary from your experience playing the Mental demo slot.
More stats are available above on this page. Volatility, hit rate, bonus frequency, the chance of hitting different winnings, etc.
This slot was a massive hit, and it isn’t surprising that the developer released its sequel. Mental 2 keeps the original features and packs even more xMechanics so that things can go absolutely insane. xHole reshuffles icons, xMental turns an entire grid into one massive Fire Frame with special cells revealing boosters. xBet offers more paid options, and with xGOD, players can land the top prize instantly.
March 2025, NoLimit City Mental 2 RTP: 96.06%, Max Win: x99999, Volatility: High
Features: Bonus Buy, Multiplier, xWays Slots, xBet, xGOD, xHole, xMental, xSplit Play for real T&C applies, 18+ Play for fun In terms of the atmosphere, nothing changes. Players return to the psychiatric hospital to witness barbaric practices and lots of suffering. Both Mental slot machines turned out to be extremely popular. But the studio is to continue this slot series.
Mental offers a unique but disturbing atmosphere of pain and suffering. It has the Over The Limit sticker for a reason. Unusual theme is just part of the appeal, because the slot offers a truly insane gaming experience. Bonus is the highlight of the game, and there are three bonus levels with progressively bigger potential and more actions.
This Mental slot review offers extensive game stats that help better understand what the game offers. You’ll find much more than the official stats Nolimit City provides. But testing the game is the only way to feel it and see if it suits your gaming style.
5 x5 4 x1.5 3 x0.75 
5 x3.75 4 x1.25 3 x0.6 
5 x2.5 4 x1.1 3 x0.5 
5 x2 4 x1 3 x0.45 
5 x1.5 4 x0.9 3 x0.4 
5 x1.25 4 x0.75 3 x0.3 
5 x1.15 4 x0.65 3 x0.25 
5 x1.1 4 x0.6 3 x0.2 
5 x1.05 4 x0.55 3 x0.15 
5 x1 4 x0.5 3 x0.1 
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Yes, Katsu5 is the place to try Mental with no sign up required. Any gambling site partnering with NoLimit City would also provide free access to the test mode.
Yes, registered account with a gambling site would be the only option to play real money Mental and land real winnings.
When it comes to free play any trusted gambling operator or casino related site such as Katsu5 would be fine. Once real cash gets involved licensed operator with solid reputation and top tier services must be selected. Best casino would vary depending on one`s personal preferences.
Yes, this video slot is mobile optimized and can be played on any device.
This is a certified video slot that generates random outcomes, and all you need is a good luck. Look through the paytable to learn how and how much you can win.
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