Sanatorium Secrets Slot Review
Free demo, RTP, volatility and max win
7.9Value score · Good · how it works
Sanatorium Secrets review: a 2026 Pragmatic Play chiller with wild multipliers up to 64x, a puzzle respin round and Super Free Spins, at 96.47% RTP.
- #1019by RTP of 3,708 slots
- #1213by value of 3,708 slots
Play Sanatorium Secrets free: demo, no sign-up
Free play money from Pragmatic Play's official demo. 18+. No deposit and no account; a demo does not predict real results.
Basic information
| Software | Pragmatic Play |
|---|---|
| Release year | 2026 |
| RTP | 96.47% |
| Volatility | Not published |
| Max win | Not published |
| Hit frequency | Not published |
| Features | Free spins |
| Game type | Slot |
| Data verified | 2026-09-28 |
Source: Pragmatic Play game page; RTP database by toolsgambling.com (CC BY 4.0); image: Pragmatic Play promotional image from the official game page. How we collect data · Report a mistake
Sanatorium Secrets review
Sanatorium Secrets is a 2026 slot about chilling mysteries in which the wilds do most of the talking. Tall expanding wilds, fiery double-width wilds and hook symbols that turn whole rows wild all carry or create multipliers. The bonus has two parts: a puzzle respin game that comes first and sets the stage, then the free spins. The studio gives no volatility or max win figure, so the maths section is limited to RTP and cost.
Wilds that fill the reels
In both the base game and the bonus, wilds come in several shapes. A 1x4 expanding wild can cover any of reels 2 to 5 and carry a multiplier of up to 8x. A fiery 2x4 wild can cover reels 3 and 4 and carry up to 64x.
Hook symbols work differently. When one lands on the first or sixth reel, every high-paying symbol on the same row becomes a 1x1 wild, and the hook then turns into that same symbol. Taken together, these wilds make multipliers central to what a win is worth.
The puzzle before the free spins
Three scatters on reels 2 to 5 trigger the bonus game with six free spins, plus two more for each additional scatter. Before those spins begin, a puzzle respin game is played.
Puzzle respins
The puzzle sets the minimum wild multiplier that can land in the free spins and may switch on hooks and 1x1 wilds. Each puzzle piece that lands can unlock additional respins and free spins. Completing the whole puzzle awards the maximum win at once.
Super Free Spins
A super scatter landing with three scatters starts this version. Two hooks are certain to hit in the puzzle feature and again during the free spins that follow, so the row-to-wild effect is built in.
The cost of a session
One RTP is recorded: 96.47%. The house edge is 3.53%, an average loss of $35.30 per $1,000 wagered. Over 100 spins, a $0.20 bet costs about $0.71, a $1 bet $3.53 and a $5 bet $17.65.
The studio does not publish volatility, and the catalogue has no max win. The 64x wild is a multiplier on a single wild, not a statement of how much a round can pay.
Peers on RTP
Several 2026 games list a nearby figure: Helios - Triple Sun at 96.46%, Cosmic Clusters! and Fire Stampede Ultimate at 96.45%, and Caishen's Cash Pots and Mr Null's Wicked Wares at 96.49%. 777 Wheel Blitz is at 96.5%.
Pros
- Wild multipliers of up to 8x on expanding wilds and up to 64x on 2x4 wilds
- Puzzle respin game raises the minimum wild multiplier before the free spins
- Free spins start at six and gain two for each extra scatter
- Free official demo available
Cons
- Two-part bonus is more complex to learn than a plain free spins round
- No volatility label or max win in the catalogue
Verdict
Sanatorium Secrets suits players who like layered bonuses: a puzzle round that fixes a minimum wild multiplier, followed by free spins that start at six and can grow. Multipliers reach 8x and 64x on wilds. The 96.47% RTP and 3.53% house edge are in line with other 2026 games, and volatility is unpublished. Try the free demo to see how the puzzle feeds the free spins before staking.
Sources: Pragmatic Play official game page; RTP, volatility and max win from the open Slot RTP Database.
Slots like Sanatorium Secrets
Sanatorium Secrets RTP
The data lists one RTP for Sanatorium Secrets. Versions are not tracked for Pragmatic Play games, so other versions may exist; check the game's info screen.
- 96.47% $35.30 lost per $1,000
Cost of 100 spins
| Bet | Wagered | Average cost at 96.47% |
|---|---|---|
| $0.20 | $20 | $0.71 |
| $1 | $100 | $3.53 |
| $5 | $500 | $17.65 |
Averages computed from the published RTP; real sessions vary widely around them. RTP calculator
Sanatorium Secrets max win, volatility & stats
- Value score
- 7.9 / 10
- Lost per $1,000 (average)
- $35.30
- Max win at $1 bet
- –
- Wins on average
- –
Percentiles compare this game with the 3,708 games in the catalogue. Max win: not published.
