Sanatorium Secrets

Sanatorium Secrets is a 6x4, 4,096-ways horror slot from Pragmatic Play released June 2026. RTP 96.47%, medium volatility, 10,000x maximum win. The grid features three classes of expanding wild: standard 1x1 wilds that land on reels 2–5 via the Hook symbol converting high-value icons; 1x4 expanding wilds that fill any of reels 2–5 and carry multipliers up to 8x; and 2x4 fiery wilds that can engulf reels 3 and 4 simultaneously carrying multipliers as high as 64x.

Free spins trigger on 3+ scatter symbols, awarding 6 spins plus 2 per additional scatter. Before the round starts, a puzzle respin bonus plays out and determines the minimum wild multiplier value for the entire free-spin sequence — a pre-bonus setup event that sets a floor on what multipliers will be in play. A super scatter activates Super Free Spins with elevated modifiers.

Medium volatility is the structural standout here. A 10,000x ceiling at medium variance is an unusual combination in the PP catalog — most titles at that max win sit at high or very high volatility. The 30.12% base hit frequency (roughly 1 in 3.3 spins) keeps sessions alive, and the escalating wild multiplier tiers create genuine mid-session payoffs, not just bonus-round dependency.

The horror-asylum aesthetic is executed with more visual commitment than most PP themes. For players who find 5/5 slots punishing but still want a meaningful max win target, the medium volatility and 10,000x ceiling combination is the slot's real differentiator. The 64x fiery wild during a free-spin round is the event to chase.

Verdict
A 10,000x ceiling at medium volatility — unusual in the catalog. Escalating wild multipliers up to 64x with a pre-bonus puzzle respin setup. Solid value proposition.