Mental Slot by Nolimit City
Mental is a 5x3, 108-ways slot with xWays, xSplit, xNudge and Fire Frames by Nolimit City, released in 2021.
Game facts
| Provider | Nolimit City |
|---|---|
| Game type | Slots |
| Release date | August 2021 |
| RTP | 96.08% |
| Volatility | High volatility |
| Max win | 66,666x the betOdds: 1 in 18,000,000 |
| Reels × rows | 5 × 3 |
| Pays | 108 ways to win |
| Bet range | 0.20–70 |
| Bonus buy | Yes |
| Wild symbol | Yes |
| Features | XWaysXSplitXNudgeFire Frames |
| Themes | HorrorHalloween |
| Restrictions | The feature buy may be removed in some regulated markets |
| App | Yes — how to install |
Free demo of Mental
The free demo of Mental is on this page: no deposit and no real-money wins.
The demo uses virtual credits: no deposit, no real-money wins.
Where to play for real money
18+ · T&Cs apply · Gamble responsibly · Offers for your country
Real-money play is only for adults and only at licensed online casinos where online gambling is legal for you.
How to play Mental
Bet range: 0.20–70
- Symbols must match on adjacent reels starting from reel 1 to form a win.
- Fire Frames split symbols landing inside them and can activate Enhancer Cells on reels 2 and 4.
- Land 3 Scorpion scatters to trigger Autopsy Free Spins; adding Spiders at trigger opens higher modes.
- During free spins, Spiders landing on reels 2 or 4 can upgrade the current mode to the next tier.
Bonus features
Free spins
3 Scorpion scatters on reels 1, 3 and 5 trigger 8 Autopsy Free Spins. 3 Scorpions plus 1 Spider trigger 9 Lobotomy Free Spins, and 3 Scorpions plus 2 Spiders trigger 10 Mental Free Spins. A Scorpion landing in a Fire Frame adds 1 spin, and Spiders during the round upgrade it to the next mode.
Multipliers
2 Dead Patient symbols give a patient symbol a random multiplier from x5 to x9,999. In Lobotomy and Mental Free Spins, the Dead Multiplier is collected and passed to new Patient symbols. Its count drops by 1 each time in Lobotomy and never drops in Mental Free Spins.
Bonus buy
Autopsy Free Spins 80x, Lobotomy Free Spins 200x, Mental Free Spins 1,000x, and a 220x lucky dip (50% Autopsy, 40% Lobotomy, 10% Mental) — all multiples of the bet
Fire Frames
each spin, 1 to 13 random positions get a frame, and a symbol landing in a frame splits into 2
Enhancer Cells
on reels 2 and 4, activated by 4 or 6 Fire Frames, revealing a wild, Patient, Dead Patient, xWays, xSplit or xNudge Wild
XWays
reveals a stack of matching symbols, expanding the reel and adding ways to win
XSplit
splits the symbols to its left in two, then becomes a wild; next to a scatter it creates a Super Scatter
XNudge Wild
a wild reel nudges to fill the reel, adding +1 to its multiplier per nudge
Dead Patient
2 Dead Patient symbols give a premium patient symbol a random multiplier from x5 to x9,999
Mental Transform
Spiders on reels 2 or 4 transform into xWays, xSplit, Dead Patient, Wild or Patient symbols
When 2 Dead Patient symbols appear, a patient symbol receives a random multiplier. In higher free spin modes, that multiplier carries forward to new Patient symbols rather than resetting, and the rate at which it decreases depends on which mode is active.
RTP and volatility
| RTP version | Return per 100 staked |
|---|---|
| 96.08% | 96.08 |
| 94.2% | 94.20 |
The gap between versions is 1.88 per 100 staked.
The RTP of the version you play is shown in the game's information screen.
High volatility — High volatility here means a win appears roughly every 2.9 spins on average, but the top outcome of 66,666x is a rare ceiling rather than a regular expectation.
Other versions of Mental
| Game | RTP | Max win | Volatility | Year |
|---|---|---|---|---|
| Mental 2 | 96.06% | 99,999x | Very high volatility | 2025 |
Mental app: download and install
The Mental app for Android downloads with the button on this page.
- Tap the download button on this page to get the installation file.
- When Android asks, allow your browser to install apps from this source.
- Open the downloaded file from your notifications or downloads folder.
- Confirm the installation when prompted.
Frequently Asked Questions
What is the RTP of Mental?
The default RTP of Mental is 96.08%. Casinos can also run versions at 94.2%; the gap is 1.88 per 100 staked. The RTP of the version you play is shown in the game's information screen.
What is the max win in Mental?
The max win in Mental is 66,666x the bet. The odds of hitting it are 1 in 18,000,000. At the maximum bet that is 4,666,620.
How volatile is Mental?
Mental has high volatility. A win lands every 2.9 spins on average. Free spins start every 216 spins on average.
How do free spins work in Mental?
3 Scorpion scatters on reels 1, 3 and 5 trigger 8 Autopsy Free Spins. 3 Scorpions plus 1 Spider trigger 9 Lobotomy Free Spins, and 3 Scorpions plus 2 Spiders trigger 10 Mental Free Spins.
Can you buy the bonus in Mental?
Yes, Mental has a bonus buy.
What do Enhancer Cells actually do?
Enhancer Cells sit on reels 2 and 4 and activate once enough Fire Frames appear in a spin; when revealed, each cell can produce a wild, a Patient symbol, a Dead Patient, or one of the special mechanic symbols.
How does xSplit interact with other symbols?
xSplit splits the symbols immediately to its left in two and then turns into a wild itself; when it lands next to a scatter, that scatter becomes a Super Scatter instead.
18+. Gambling involves risk; play only where online casinos are legal for you.
Updated: 28.10.2026