- Maximum win of 10,000x
- Respins bonus with max win potential
- Free spins with wild win multipliers
- Horror theme may not widely appeal
Contents
Sanatorium Secrets Slot Overview
Get involved in some chilling mysteries in this 6x4 video slot from Pragmatic Play. Look out for wild multipliers that can create spine-tingling payouts and try to trigger a two-part bonus feature for even more payout potential and the chance of a max win of 10,000x the bet. Read on in this Sanatorium Secrets slot overview to find out more.
How to play the Sanatorium Secrets slot
Start enjoying this slot with the help of the following playing tips:
- Start by deciding on your stake per spin. Bets start at 20p a game.
- Always think about responsible gaming when playing this game or other slots such as Sweet Bonanza.
- Timeout and self-exclusion tools are available if needed.
- Use the menu tab to access the game information, the paytable of winning symbols, and the Sanatorium Secrets bonus features.

Sanatorium Secrets RTP & Volatility
This is a medium volatility choice of Pragmatic Play slots, rated three out of five for its variance level. The Sanatorium Secrets top win is 10,000x the bet, and the RTP is 96.47%.
How to win at the Sanatorium Secrets slot
Land winning combinations in the base game, helped by expanding wilds. Scatter symbol combinations can trigger bonus games that start with a bonus puzzle respins round. This determines a minimum wild win multiplier and can trigger transforming symbols that add more wild action to the grid.
Sanatorium Secrets gameplay flow & systems
Land base game wins, helped by expanding wilds, in the Sanatorium Secrets slot. The expanded wilds can also land in the bonus games, fill any of the middle four reels, and carry win multiplier values of up to 8x.
Giant wilds can also land on the centre two reels, with win multiplier values of up to 64x, and hook symbols on the outer reels can transform higher-value icons into a wild symbol. Meanwhile, landing a three-scatter symbol combination in the base game will award you a free spins bonus, starting with a puzzle respins game that decides the minimum win multiplier during the bonus round and possibly unlocking transforming symbols and extra wild icons.
Sanatorium Secrets win rules & symbols
The game is played on a 6x4 grid with 4,096 ways to win replacing the paylines found in many slots in online casinos. Winning combinations are paid out from left to right and are based on a 20x bet multiplier. There are payouts for combinations of at least three winning symbols.
Sanatorium Secrets bonuses
Giant wilds, free spins, respins, and win multipliers are all on offer to boost the fun factor in this choice of slots. Let’s find out more:
Expanded wilds
Wilds can substitute for all standard symbols and can cover whole reels in the centre of the grid. They can also carry win multipliers worth up to 8x and appear in both the base game and free spins.
Top Horror Slots
Top Horror Slots
Fiery giant wilds, measuring 2x4, can also engulf the third and fourth reels and have a win multiplier as high as 64x. Wilds can also be created by transforming hook symbols that can land on the first and last reels.
Free games
As is the case in many slots in online casinos, three scatters can unlock a free games feature:
- You are awarded 6 bonus games for three triggering scatters.
- You will receive two more spins for each additional scatter symbol.
- Up to five scatters can trigger the bonus.
Puzzle respins
This plays out before the free games feature. It sets the minimum win multiplier in the free games and can activate 1x1 wilds and transforming hook icons.
Each puzzle piece that lands on the reels can deliver more respins or bonus games. You can also receive the maximum win if you land all of the pieces and complete the puzzle.
Sanatorium Secrets overview
Sanatorium Secrets is a fairly standard slot of this kind with 4,096 ways to win replacing the more common paylines and a host of popular bonus features. It has a focus on wild substituting action, with wild symbols playing a big part in all sorts of aspects of the game.
Disclaimer: Sanatorium Secrets trademark / license is owned by Pragmatic Play. This site is not endorsed by Pragmatic Play.
| Slot Name: | Sanatorium Secrets |
|---|---|
| Software: | Pragmatic Play |
| RTP: | 96.47% |
| Volatility: | Medium volatility |
| Paylines: | 4096 |
| Reels: | 6 |
| Min Bet (all lines covered): | £0.20 (GBP) |
| Max Bet: | £5 (GBP) |
| Top Win: | 10000 |
| Features: | Wild Symbol, Scatter Symbol, Free Spins, Expanding Wilds, Respins, Medium volatility, 6 Reels, Wild Multipliers, 4096 Ways |
| Themes: | Horror |
| Last Update: | 03/06/2026 |
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Yes. Pragmatic Play have a UKGC license and are allowed to offer their games at UK licensed casinos. |
FAQs
Are there wild symbols in the Sanatorium Secrets slot?
If you like slots with wild substitutions, this game may be worth a look. Expanded and giant wilds can both land in the base game and during the free games feature. Higher-value symbols can also be transformed into 1x1 symbols. The transforming hook symbols also become wilds.
Is there a free spins bonus in the Sanatorium Secrets slot?
Like many slots in online casinos, there is a free games bonus triggered by landing at least three scatters in the base game. Three scatters award you six free spins, four earn you eight bonus games, and five scatters award ten risk-free opportunities to add to your total win with the help of wild win multipliers.
Are there respins in the Sanatorium Secrets slot?
There are respins in this game, and these play out at the start of the free games feature. You land puzzle pieces for the chance to earn more free spins, respins, wild action, or increase the minimum value of a progressive wild win multiplier that can boost the payout potential of the bonus.
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