{"title":"Play Sanatorium Secrets Slot Game at Heart Bingo","description":"Sanatorium Secrets by Pragmatic Play at Heart Bingo is a horror slot game with 4,096 ways, Hook symbols, Wild multipliers and free spins.","custom_path":"/en-gb/casino/games/2017077-sanatorium-secrets","heading":"Play Sanatorium Secrets ","heading_tag":"h1","nofollow":false,"noindex":false,"has_custom_schema":true,"schema_json":[{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","item":{"@id":"https://www.heartbingo.co.uk/en-gb","name":"Online Bingo Site"},"position":1},{"@type":"ListItem","item":{"@id":"https://www.heartbingo.co.uk/en-gb/online-casino","name":"Casino"},"position":2},{"@type":"ListItem","item":{"@id":"https://www.heartbingo.co.uk/en-gb/casino/category/slots","name":"[category] | [brand]"},"position":3},{"@type":"ListItem","item":{"@id":"https://www.heartbingo.co.uk/en-gb/casino/games/2017077-sanatorium-secrets","name":"Play Sanatorium Secrets "},"position":4}]},{"@context":"https://schema.org","@type":"Game","@id":"https://www.heartbingo.co.uk/en-gb/casino/games/2017077-sanatorium-secrets","name":"Play Sanatorium Secrets ","description":"Sanatorium Secrets by Pragmatic Play at Heart Bingo is a horror slot game with 4,096 ways, Hook symbols, Wild multipliers and free spins.","image":"cms-images/3bnzblumhfhy2cbtr9vgl4yylwhw","genre":"Online Slot","creator":{"@type":"Organization","name":"Pragmatic"},"numberOfPlayers":{"@type":"QuantitativeValue","minValue":1,"maxValue":1},"url":"https://www.heartbingo.co.uk/en-gb/casino/games/2017077-sanatorium-secrets"},{"@context":"https://schema.org","@type":"FAQPage","mainEntity":[{"@type":"Question","name":"What atmosphere does Sanatorium Secrets create?","acceptedAnswer":{"@type":"Answer","text":"Our screen shows a misty sanatorium with dark corridors, distressed character portraits, burning Wild symbols and an uneasy psychological horror style."}},{"@type":"Question","name":"What happens during the Puzzle feature?","acceptedAnswer":{"@type":"Answer","text":"Puzzle pieces lock on the middle reels, reset the three respins and add one free spin. Completing a reel turns its associated character into a Wild for the following round."}},{"@type":"Question","name":"How are potential wins formed in Sanatorium Secrets?","acceptedAnswer":{"@type":"Answer","text":"Matching symbols must land on adjacent reels from left to right across the 6x4 grid. The game uses 4,096 ways rather than fixed paylines."}}]}],"has_toc":true,"alternate_languages":[],"copy_sections":[{"toc_title":"Game Review  ","title":"\u003ch2 class=\"bvs-h2\"\u003eSanatorium Secrets Slot Game Review \u0026nbsp;\u003c/h2\u003e","content":"\u003cp\u003eA sanatorium already sounds like the sort of place where the lights flicker for reasons nobody wants explained. Sanatorium Secrets from Pragmatic Play takes us inside a psychological horror setting built around a 6x4 grid and 4,096 ways to win. Large Wilds can carry multipliers, while Hook symbols transform characters and double existing values. Before free spins begin, a Puzzle feature determines which Wilds and modifiers accompany us into the main round.\u0026nbsp;\u003c/p\u003e"},{"toc_title":"Theme \u0026 Graphic ","title":"\u003ch2 class=\"bvs-h2\"\u003eTheme \u0026amp; Graphic\u0026nbsp;\u003c/h2\u003e","content":"\u003cp style=\"margin-left:0px;text-align:justify;\"\u003eOur first view places the reels before a mist covered institution with locked gates, dim windows and very little evidence of a functioning complaints department. The dark colour scheme uses grey stone, faded green light and scratched symbol frames to create an abandoned clinical setting.\u0026nbsp;\u003c/p\u003e\u003cp style=\"margin-left:0px;text-align:justify;\"\u003eFour patients and staff members form the premium symbols, while the card ranks appear on stained metal tiles. Large Wilds resemble burning walls or pages marked with frantic writing, and the Hook arrives as a rusted chain. During the bonus, puzzle pieces gradually cover the central reels as the sanatorium burns in the background. Short flashes, distorted sounds and sudden transformations give the features their impact. The presentation rarely becomes graphic, but the uneasy atmosphere remains firmly in place.\u0026nbsp;\u003c/p\u003e"},{"toc_title":"Payout Table ","title":"\u003ch2 class=\"bvs-h2\"\u003ePayout Table\u0026nbsp;\u003c/h2\u003e","content":"\u003cp\u003eCard ranks form the lower end of the paytable, beginning with the 9 and 10 symbols. Four character portraits provide the higher potential payouts, with the dark haired woman sitting at the top.\u0026nbsp;\u003c/p\u003e\u003cdiv class=\"raw-html-embed\"\u003e\u003ctable border=\"1\"\u003e \r\n\r\n  \u003ctbody\u003e \r\n\r\n    \u003ctr\u003e \r\n\r\n      \u003cth\u003eSymbol\u003c/th\u003e \r\n\r\n      \u003cth\u003ePayout for 3, 4, 5, 6 of a kind\u003c/th\u003e \r\n\r\n    \u003c/tr\u003e \r\n\r\n    \u003ctr\u003e \r\n\r\n      \u003ctd\u003e9\u003c/td\u003e \r\n\r\n      \u003ctd\u003e$0.20, $0.40, $0.80, $1.00\u003c/td\u003e \r\n\r\n    \u003c/tr\u003e \r\n\r\n    \u003ctr\u003e \r\n\r\n      \u003ctd\u003e10\u003c/td\u003e \r\n\r\n      \u003ctd\u003e$0.20, $0.40, $0.80, $1.00\u003c/td\u003e \r\n\r\n    \u003c/tr\u003e \r\n\r\n    \u003ctr\u003e \r\n\r\n      \u003ctd\u003eJ\u003c/td\u003e \r\n\r\n      \u003ctd\u003e$0.20, $0.60, $1.20, $1.60\u003c/td\u003e \r\n\r\n    \u003c/tr\u003e \r\n\r\n    \u003ctr\u003e \r\n\r\n      \u003ctd\u003eQ\u003c/td\u003e \r\n\r\n      \u003ctd\u003e$0.20, $0.60, $1.20, $1.60\u003c/td\u003e \r\n\r\n    \u003c/tr\u003e \r\n\r\n    \u003ctr\u003e \r\n\r\n      \u003ctd\u003eK\u003c/td\u003e \r\n\r\n      \u003ctd\u003e$0.40, $0.80, $2.00, $2.40\u003c/td\u003e \r\n\r\n    \u003c/tr\u003e \r\n\r\n    \u003ctr\u003e \r\n\r\n      \u003ctd\u003eA\u003c/td\u003e \r\n\r\n      \u003ctd\u003e$0.40, $0.80, $2.00, $2.40\u003c/td\u003e \r\n\r\n    \u003c/tr\u003e \r\n\r\n    \u003ctr\u003e \r\n\r\n      \u003ctd\u003eMale Character\u003c/td\u003e \r\n\r\n      \u003ctd\u003e$0.60, $1.00, $2.40, $3.00\u003c/td\u003e \r\n\r\n    \u003c/tr\u003e \r\n\r\n    \u003ctr\u003e \r\n\r\n      \u003ctd\u003eElderly Male Character\u003c/td\u003e \r\n\r\n      \u003ctd\u003e$0.60, $1.20, $3.00, $5.00\u003c/td\u003e \r\n\r\n    \u003c/tr\u003e \r\n\r\n    \u003ctr\u003e \r\n\r\n      \u003ctd\u003eBlonde Female Character\u003c/td\u003e \r\n\r\n      \u003ctd\u003e$0.80, $1.40, $5.00, $10.00\u003c/td\u003e \r\n\r\n    \u003c/tr\u003e \r\n\r\n    \u003ctr\u003e \r\n\r\n      \u003ctd\u003eDark Haired Female Character\u003c/td\u003e \r\n\r\n      \u003ctd\u003e2: $0.60, 3: $2.00, 4: $5.00, 5: $10.00, 6: $20.00\u003c/td\u003e \r\n\r\n    \u003c/tr\u003e \r\n\r\n  \u003c/tbody\u003e \r\n\r\n\u003c/table\u003e \u003c/div\u003e\u003cul\u003e\u003cli style=\"margin-left:0px;text-align:justify;\"\u003e1x4 Wild: This full height Wild appears on reels 2, 3, 4 and 5 with a random 4x or 8x multiplier. The symbol substitutes for regular icons, and its multiplier applies to potential combinations passing through its position.\u0026nbsp;\u003c/li\u003e\u003cli style=\"margin-left:0px;text-align:justify;\"\u003e2x4 Wild: Reels 3 and 4 can produce this double width Wild with a multiplier of 8x, 16x, 32x or 64x. When several Wild multipliers contribute to one combination, their values are added together.\u0026nbsp;\u003c/li\u003e\u003cli style=\"margin-left:0px;text-align:justify;\"\u003eHook: Appearing on reels 1 and 6, the Hook collects high paying symbols from its row and converts them into 1x1 Wilds. Any existing Wild crossed by the Hook has its multiplier doubled.\u0026nbsp;\u003c/li\u003e\u003cli style=\"margin-left:0px;text-align:justify;\"\u003e1x1 Wild: These smaller Wilds appear on the four middle reels after a Hook transformation. Each substitutes for regular paying symbols during the current spin or subsequent bonus round.\u0026nbsp;\u003c/li\u003e\u003cli style=\"margin-left:0px;text-align:justify;\"\u003eScatter: The regular Scatter can land on reels 2, 3, 4 and 5. Three or more Scatters activate the standard free spins sequence.\u0026nbsp;\u003c/li\u003e\u003cli style=\"margin-left:0px;text-align:justify;\"\u003eSuper Scatter: Reel 6 can produce the Super Scatter. A combination of three regular Scatters and one Super Scatter activates Super Free Spins.\u0026nbsp;\u003c/li\u003e\u003c/ul\u003e"},{"toc_title":"Bonus Features ","title":"\u003ch2 class=\"bvs-h2\"\u003eBonus Features\u0026nbsp;\u003c/h2\u003e","content":"\u003ch3 class=\"bvs-h3\" style=\"margin-left:0px;text-align:justify;\"\u003ePuzzle Feature\u0026nbsp;\u003c/h3\u003e\u003cp style=\"margin-left:0px;text-align:justify;\"\u003eBefore free spins begin, our bonus moves into a Puzzle round with three respins. New puzzle pieces remain locked on the grid, restore the respin counter and add one free spin to the upcoming round.\u0026nbsp;\u003c/p\u003e\u003cp style=\"margin-left:0px;text-align:justify;\"\u003eCompleting a middle reel with puzzle pieces converts the character linked to that reel into a Wild for the subsequent feature. The Puzzle round ends when the respins run out or all four middle reels become fully covered.\u0026nbsp;\u003c/p\u003e\u003ch3 class=\"bvs-h3\" style=\"margin-left:0px;text-align:justify;\"\u003ePuzzle Hooks\u0026nbsp;\u003c/h3\u003e\u003cp style=\"margin-left:0px;text-align:justify;\"\u003eOne or two Hook symbols can appear on the outer reels during the Puzzle feature. Each collected Hook then returns in a random position on every spin of the following bonus round.\u0026nbsp;\u003c/p\u003e\u003cp style=\"margin-left:0px;text-align:justify;\"\u003eA Super Scatter trigger guarantees two Hooks during the Puzzle stage. This gives Super Free Spins more consistent access to character conversions and multiplier doubling.\u0026nbsp;\u003c/p\u003e\u003ch3 class=\"bvs-h3\" style=\"margin-left:0px;text-align:justify;\"\u003eWild Multiplier Upgrades\u0026nbsp;\u003c/h3\u003e\u003cp style=\"margin-left:0px;text-align:justify;\"\u003eA 1x modifier may land on reel 1 or 6 during the Puzzle feature. Each collected modifier increases the lowest multiplier available to the 1x4 Wilds during free spins.\u0026nbsp;\u003c/p\u003e\u003cp style=\"margin-left:0px;text-align:justify;\"\u003eThis development gives the Puzzle round a second purpose beyond creating character Wilds. The final bonus setup depends on how many reels, Hooks and multiplier additions we collect before the respins finish.\u0026nbsp;\u003c/p\u003e\u003ch3 class=\"bvs-h3\" style=\"margin-left:0px;text-align:justify;\"\u003eFree Spins\u0026nbsp;\u003c/h3\u003e\u003cp style=\"margin-left:0px;text-align:justify;\"\u003eThe standard round begins with six free spins, plus two additional spins for every triggering Scatter beyond the third. Character symbols completed during the Puzzle stage can appear as Wilds on reels 2 to 5.\u0026nbsp;\u003c/p\u003e\u003cp style=\"margin-left:0px;text-align:justify;\"\u003eWhenever a Hook crosses one of those transformed characters, the symbol becomes a 1x1 Wild and its current multiplier doubles. The interaction gives these \u003ca href=\"https://www.heartbingo.co.uk/en-gb/slots\"\u003eonline slots\u003c/a\u003e mechanics a clear sequence, since Puzzle progress directly determines what can happen during the following spins.\u0026nbsp;\u003c/p\u003e\u003ch3 class=\"bvs-h3\" style=\"margin-left:0px;text-align:justify;\"\u003eSuper Free Spins\u0026nbsp;\u003c/h3\u003e\u003cp style=\"margin-left:0px;text-align:justify;\"\u003eThree regular Scatters and one Super Scatter activate the stronger round. Two Hooks are guaranteed during the preceding Puzzle feature, increasing the number of transformations that may occur once free spins begin.\u0026nbsp;\u003c/p\u003e\u003cp style=\"margin-left:0px;text-align:justify;\"\u003eThe remaining rules follow the standard round, including the extra spins earned from puzzle pieces and the multiplier increases collected on the outer reels.\u0026nbsp;\u003c/p\u003e"},{"toc_title":"Spin Mechanics ","title":"\u003ch2 class=\"bvs-h2\"\u003eSpin Mechanics\u0026nbsp;\u003c/h2\u003e","content":"\u003cp style=\"margin-left:0px;text-align:justify;\"\u003eSanatorium Secrets uses six reels and four rows, creating 4,096 ways to form potential winning combinations. Matching symbols must appear on adjacent reels from left to right, beginning with reel 1, but their vertical positions don’t need to match.\u0026nbsp;\u003c/p\u003e\u003cp style=\"margin-left:0px;text-align:justify;\"\u003eRegular symbols can pay with three or more matches, while the highest character begins paying from two. The main mechanical changes come from oversized Wilds, additive multipliers and Hook transformations. Since a Hook can cross an entire row, one landing may convert several premium symbols and strengthen Wilds already occupying the same path.\u0026nbsp;\u003c/p\u003e"},{"toc_title":"Similar Slots ","title":"\u003ch2 class=\"bvs-h2\"\u003eSimilar Slots\u0026nbsp;\u003c/h2\u003e","content":"\u003cul\u003e\u003cli style=\"margin-left:0px;text-align:justify;\"\u003eDark scenery isn’t the only useful comparison here, since the Wild systems and busy bonus stages also point towards three earlier reviews.\u0026nbsp;\u003c/li\u003e\u003cli style=\"margin-left:0px;text-align:justify;\"\u003e\u003ca href=\"https://www.heartbingo.co.uk/en-gb/casino/games/2017321-monster-quest\"\u003eMonster Quest\u003c/a\u003e: Shadowy creatures and an ominous setting make this the closest thematic match, though the feature structure follows a different path.\u0026nbsp;\u003c/li\u003e\u003cli style=\"margin-left:0px;text-align:justify;\"\u003e\u003ca href=\"https://www.heartbingo.co.uk/en-gb/casino/games/2009929-the-goonies-megaways-rapid-fire\"\u003eThe Goonies Megaways Rapid Fire\u003c/a\u003e: Character based symbols and a detailed bonus setup create a similarly busy experience, even with a less disturbing adventure theme.\u0026nbsp;\u003c/li\u003e\u003cli style=\"margin-left:0px;text-align:justify;\"\u003e\u003ca href=\"https://www.heartbingo.co.uk/en-gb/casino/games/2010092-5-lions-megaways-2\"\u003e5 Lions Megaways 2\u003c/a\u003e: Large numbers of winning ways, Wild multipliers and an evolving free spins round connect the mechanics despite the brighter setting.\u0026nbsp;\u003c/li\u003e\u003c/ul\u003e"},{"toc_title":"Heart Bingo's Opinion ","title":"\u003ch2 class=\"bvs-h2\"\u003eHeart Bingo's Opinion\u0026nbsp;\u003c/h2\u003e","content":"\u003cp style=\"margin-left:0px;text-align:justify;\"\u003eSanatorium Secrets gives us a convincing horror setting and mechanics that actually support the mood rather than merely standing near it. The Hook is the strongest part of the design, since each appearance can transform several symbols, create Wilds and double multipliers in one movement. Our Puzzle preparation also gives free spins a different setup on each trigger.\u0026nbsp;\u003c/p\u003e\u003cp style=\"margin-left:0px;text-align:justify;\"\u003eAmong \u003ca href=\"https://www.heartbingo.co.uk/en-gb/online-casino\"\u003eonline casinos\u003c/a\u003e, horror slots often rely on dark corridors and loud noises before returning to fairly ordinary reels. This one has more going on beneath the flickering lights. Some rules take time to absorb, particularly the relationship between puzzle pieces, character Wilds and Hook returns. Still, our opinion is positive for readers who enjoy transformation mechanics and bonus rounds with visible preparation. The sanatorium may be abandoned, but the feature department has clearly been working overtime.\u0026nbsp;\u003c/p\u003e"}]}