Mental Slot Review

Mental Introduction - Do you Have Enough Courage to Visit the Asylum?

When I first loaded the Mental slot, I felt like I was stepping into a grim old-fashioned asylum rather than a regular online game. Nolimit City leans hard into the horror theme here, with a scary and chilly game that tests your nerve as much as your bankroll. This is a high volatility, even extreme volatility, title where the math model can hit hard, but the max win of 66,666 times your bet keeps me coming back.

Mental runs on five reels in a 3-2-3-2-3 layout, giving 108 ways to win before the Fire Frames start splitting symbols and blowing the grid wide open. Stakes start from 20p per spin and can climb to around £70, though some sites cap the top bet lower. Between xWays, xSplit, xNudge Wilds, Dead Patients and Enhancer Cells, the base game already feels like a full-on feature round.

The Chilling Visuals and Theme in Mental set to Make you Jump

The visuals in Mental are pure nightmare fuel. Sepia-tinged walls, flickering lights and grim anatomical sketches make the reels feel like they are bolted onto a Victorian treatment room. The soundtrack slithers along in the background, full of distant screams and clanks, so even routine base game spins feel tense. After a few sessions I almost feel locked up in the asylum myself, which suits this horror slot perfectly.

On the paytable, the low paying symbols are body parts that would not look out of place on an autopsy slab. Skeleton hands, lungs, hearts, brains and staring eyes pay from about 0.1x up to 1.25x your stake for five of a kind. Above them sit five patients, simply labelled Patient 1 to Patient 5, with the top guy bringing 5x your bet when you land him across five reels.

The wild symbol is a skull with a branded W, stepping in for standard symbols to complete wins. Scorpions and spiders work as scatters, needed for the three free spins modes, while the eerie Dead Patient symbol brings those massive multipliers when two land together. Enhancer Cells, xWays, xSplit and xNudge Wilds all show up on reels two and four, helping Mental pile on extra ways and stacked symbol combinations.

Symbols and Paytable

Symbol	Quantity	Payout
	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
	Special
	Special
	Special
	Wild

This Disturbing Hospital in Mental is Stuffed With Special Bonuses

In the base game, Mental keeps things lively with a disturbing stack of features before you even see a scatter. Every spin, between one and thirteen positions get wrapped in Fire Frames; any symbol landing inside splits into two, doubling that position for ways to win. Land two Dead Patient symbols and the game reveals a premium patient with a random multiplier that can shoot from 5x right up to a wild 9,999x.

At the bottom of reels two and four sit the Enhancer Cells, which light up when four or six Fire Frames land on that reel. These cells can add a standard wild, one of the patient faces, a fresh Dead Patient or one of the xWays, xSplit or xNudge Wild modifiers. Spiders on reels two or four trigger the Mental Transform, turning into whichever of those special symbols the script demands on that spin.

The Scary Free Spins Feature in Mental

The free spins in Mental come in three flavours that build in intensity. Autopsy Free Spins trigger when you land three scorpion symbols on reels one, three and five, paying eight spins plus one extra for every scorpion sitting in a Fire Frame. Fire Frames then stick for the whole bonus, so the grid quickly fills with split positions. Add a spider to those three scorpions and you jump straight into Lobotomy Free Spins instead.

Lobotomy Free Spins start with nine spins and bring sticky spiders that trigger Mental Transform every round, plus a Dead Multiplier that carries your best Dead Patient values onto new patient symbols. Hit two spiders and three scorpions in the base game and you reach Mental Free Spins, ten spins where both spiders stay sticky and the Dead Multiplier count never ticks down. Outside the UK, there is a paid Nolimit Bonus that lets you buy straight into these rounds.

RTP and Variance - Mental

When I check a high volatility game like Mental, I always look at the numbers behind the horror. The default RTP sits around 96.08%, though many casinos run lower versions down towards 94.08%, so checking the help file before betting real money makes sense. Bets start at 20p and can reach roughly £70 per spin, with a hit frequency a little over 34% and that notorious 66,666x max win lurking in the background.

Is This Creepy and Scary Slot Mental Worth Your Spin?

Mental will not suit everyone, but for me it is one of the most intense horror slots around. The theme is bleak, the rules are complex and the swings can feel brutal, yet when Fire Frames, Enhancer Cells and the Dead Multiplier line up, the game delivers a proper adrenaline rush. I would always test it in demo first, then ease into real stakes once you feel comfortable inside this twisted asylum.

Screenshots