Sanatorium Secrets Slot Mechanics and Rules on 1xBet
The developer's demo uses virtual credits.
The provider specification describes the game. 1xBet account configuration may differ by region, so check the game inside your account before play.
| Property | Value |
|---|---|
| RTP | 96.47% |
Expanding Wild Symbols and Multiplier Distribution
The 1x4 WILD symbol can appear only on reels 2, 3, 4 and 5. It substitutes for all symbols except the SCATTER and SUPER SCATTER symbols. Whenever it hits, it can randomly carry a multiplier of 4x or 8x. That multiplier applies to all winning combinations that pass through it. If more multipliers form part of the same winning combination, they add to each other.
The 2x4 WILD symbol can appear only on reels 3 and 4. It substitutes for all symbols except the SCATTER and SUPER SCATTER symbols. Whenever it hits, it can randomly carry a multiplier of 8x, 16x, 32x or 64x. That multiplier applies to all winning combinations that pass through it. If more multipliers form part of the same winning combination, they add to each other.
Hook Symbol Conversion and Wild Multiplier Doubling
The HOOK symbol can appear only on reels 1 and 6. When it hits, it grabs all high-paying symbols on the same row. It transforms itself into a matching high-paying symbol or a cluster of them. It transforms those high-paying symbols into 1x1 WILD symbols. If the HOOK passes over any WILD symbol, it doubles that WILD's multiplier.
The 1x1 WILD symbol can appear only on reels 2, 3, 4 and 5. It substitutes for all symbols except the SCATTER and SUPER SCATTER symbols. It can appear only through the conversion of a high-paying symbol by the HOOK symbol. During the free spins round, a HOOK symbol may pass over a high-paying symbol that was transformed into WILD.
It then transforms it back to a 1x1 WILD and doubles its current multiplier.
Scatter Triggers and Free Spin Award Map
The SCATTER symbol can appear on reels 2, 3, 4 or 5. The SUPER SCATTER symbol can appear only on reel 6. Hitting 3 or more SCATTER symbols triggers the FREE SPINS feature. The round starts with 6 free spins. It adds 2 free spins for each SCATTER beyond the third that triggered the feature.
Hitting 3 SCATTER symbols together with 1 SUPER SCATTER symbol triggers the SUPER FREE SPINS feature. It starts with the same free spin award structure as the standard FREE SPINS round.
Puzzle Respin Feature: Sequence, Piece Effects and Round End
Before the round starts, the PUZZLE feature is played. It starts with 3 respins. Whenever a PUZZLE piece hits on the screen, an additional respin is awarded. It also awards +1 free spin for the subsequent round. In the PUZZLE feature, high-paying symbols can transform into WILD symbols. This happens when the reel associated with the symbol above is completed vertically with puzzle pieces.
Those WILD symbols substitute for all symbols in the subsequent round. They can appear on reels 2, 3, 4 and 5 during that round. The PUZZLE round ends when there are no more respins left. It also ends when puzzle pieces fully cover reels 2, 3, 4 and 5. If puzzle pieces fully cover those reels, the maximum win is awarded and the feature ends.
Hook and Multiplier Persistence from Puzzle into Free Spins
During the PUZZLE feature, 1 or 2 HOOK symbols can randomly hit on reels 1 or 6. Any HOOK symbol that hits also appears in the subsequent FREE SPINS feature. It appears for the whole duration of the round in a random position at every spin.
If the round was triggered with a SUPER SCATTER symbol, 2 HOOK symbols are guaranteed to hit in the PUZZLE feature. They are awarded for the subsequent SUPER FREE SPINS feature. During the PUZZLE feature, a multiplier of +1x can appear on reel 1 or 6. Each one increases the minimum multiplier that the 1x4 WILD symbols can hit with during the subsequent round.
Feature Wilds
During the free spins feature, new WILD symbols transformed in the PUZZLE feature may appear on reels 2, 3, 4 and 5. Special reels are in play during the feature.
Ways Win Evaluation, Multiplier Application and Round Settlement
All symbols pay from left to right on adjacent reels starting from the leftmost reel. Wins are awarded for left-to-right adjacent symbol combinations. All wins are multiplied by the base bet. Only the highest win is paid per winning combination on the same payway. Wins on multiple payways are all added to the total win.
Free spins and respin wins are added to the payway win. They are awarded to the player after the round completes. The free spins and respin total win recorded in the history contains the whole win of the cycle.