An atmospheric puzzle-horror game where you have 72 in-game hours to escape with your life. Solve challenging puzzles that require logical deduction during the day, survive assaults from hostile ghosts at night, and uncover the mystery behind Astor Manor.

THIS IS THE DEMO FOR SEPULCHRON. IN THIS DEMO, WE WILL FOCUS ON THE PUZZLE AND ATMOHSPHERE OF THE GAME, ALONGSIDE A BIT OF COMBAT. BELOW YOU CAN READ WHAT YOU CAN EXPECT OF THE FULL GAME.Sepulchron is a difficult puzzle game set in the seemingly deserted Astor Manor. The puzzles within its walls will challenge your logical deduction, observation skills, perseverance, and real-world knowledge of everyday facts. With a day-and-night cycle, you must balance exploration during both periods: Days of tranquil monotony, and nights of dread and danger, requiring you to use anything you can find to defend yourself from ghastly threats. Discover the secrets that the Manor hides if you wish to survive longer than the 72 hours you have left before you die. PUZZLES<video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3266910/extras/cd13988576e14e6051c3b8062f9d5c21.poster.avif?t=1754680604" width=608 height=256 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3266910/extras/cd13988576e14e6051c3b8062f9d5c21.webm?t=1754680604" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3266910/extras/cd13988576e14e6051c3b8062f9d5c21.mp4?t=1754680604" type="video/mp4"></video> Using physics as a base, Sepulchron's puzzles go beyond simply finding an item to act as a 'key' to solve them, as many puzzle games do. Found a sword, and there are ropes blocking your path? Don’t just 'interact' with it — swing that sword to cut the rope! Need to press something, but it won’t stay down? Maybe you need to place something heavy to weight it down. Use your logic and common sense to uncover secrets and solve the difficult puzzles scattered throughout Astor Manor. GAMEPLAY <video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3266910/extras/b9d174496de0f81fa670772a86233446.poster.avif?t=1754680604" width=608 height=256 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3266910/extras/b9d174496de0f81fa670772a86233446.webm?t=1754680604" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3266910/extras/b9d174496de0f81fa670772a86233446.mp4?t=1754680604" type="video/mp4"></video> Ghosts and ethereal beings rise with the moon, and you must defend yourself against the evil that lurks in the dark. Either find and use weapons suited for combat with the best ammunition for each situation, or improvise and use whatever you can get your hands on — a chair, a sword from the wall, or even a teddy bear — to defeat your enemies and survive another night. And a word of warning: These sneaky ghosts change tactics every time you play, so stay on your toes! ATMOSPHERE<video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3266910/extras/7d5d63946562c2ace55ed4093eb4c3d9.poster.avif?t=1754680604" width=608 height=256 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3266910/extras/7d5d63946562c2ace55ed4093eb4c3d9.webm?t=1754680604" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3266910/extras/7d5d63946562c2ace55ed4093eb4c3d9.mp4?t=1754680604" type="video/mp4"></video>Instead of relying on jump scares like most scary games, Sepulchron builds its horror through a suspenseful atmosphere. This is achieved by the day-and-night cycle, where days are tranquil, giving a fleeting sense of safety, while nights are dark and dangerous, making preparations vital. The contrast between light and darkness also plays a crucial role, with nights being truly dark, making the management of your light sources and its fuel essential for survival. Should You Play the Demo? <video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3266910/extras/5d1916538f4217127bab7128350d38f8.poster.avif?t=1754680604" width=608 height=256 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3266910/extras/5d1916538f4217127bab7128350d38f8.webm?t=1754680604" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3266910/extras/5d1916538f4217127bab7128350d38f8.mp4?t=1754680604" type="video/mp4"></video> If you enjoy the following: - Difficult Puzzles - A Horror-filled, Moody Atmosphere - Passive Storytelling through Enviroment and Lore Books - Physics-Based Gameplay - A Game Full of Personality ... Then you will have a great time playing our demo!

Sepulchron Demo

An atmospheric immersive sim puzzle-horror game where you have 72 in-game hours to escape with your life. Solve challenging puzzles that require logical deduction during the day, survive assaults from hostile ghosts at night, and uncover the mystery behind Astor Manor.

Sepulchron is a challenging puzzle game set in the eerie, abandoned Astor Manor. Test your logic, observation, and real-world knowledge as you explore by day and survive deadly ghostly threats by night. Use whatever you can find to defend yourself, and uncover the Manor’s secrets — before your 72 hours run out.PUZZLES <video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3156910/extras/cd13988576e14e6051c3b8062f9d5c21.poster.avif?t=1755048063" width=608 height=256 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3156910/extras/cd13988576e14e6051c3b8062f9d5c21.webm?t=1755048063" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3156910/extras/cd13988576e14e6051c3b8062f9d5c21.mp4?t=1755048063" type="video/mp4"></video>Using physics as a base, Sepulchron's puzzles go beyond simply finding an item to act as a 'key' to solve them, as many puzzle games do. Found a sword, and there are ropes blocking your path? Don’t just 'interact' with it — swing that sword to cut the rope! Need to press something, but it won’t stay down? Maybe you need to place something heavy to weight it down. Use your logic and common sense of what an item should do to uncover secrets and solve the difficult puzzles scattered throughout Astor Manor. GAMEPLAY <video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3156910/extras/b9d174496de0f81fa670772a86233446.poster.avif?t=1755048063" width=608 height=256 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3156910/extras/b9d174496de0f81fa670772a86233446.webm?t=1755048063" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3156910/extras/b9d174496de0f81fa670772a86233446.mp4?t=1755048063" type="video/mp4"></video>Ghosts and ethereal beings rise with the moon, and you must defend yourself against the evil that lurks in the dark. Either find and use weapons suited for combat with the best ammunition for each situation, or improvise and use whatever you can get your hands on — a chair, a sword from the wall, or even a teddy bear — to defeat your enemies and survive another night. And a word of warning: These sneaky ghosts change tactics every time you play, so stay on your toes! ATMOSPHERE <video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3156910/extras/7d5d63946562c2ace55ed4093eb4c3d9.poster.avif?t=1755048063" width=608 height=256 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3156910/extras/7d5d63946562c2ace55ed4093eb4c3d9.webm?t=1755048063" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3156910/extras/7d5d63946562c2ace55ed4093eb4c3d9.mp4?t=1755048063" type="video/mp4"></video>Unlike most horror games, Sepulchron relies on atmosphere over jump scares. Its day-and-night cycle creates a tense rhythm — calm days offer brief safety, while nights bring real danger. Light becomes your lifeline, making fuel and illumination management key to survival. And pay attention for secrets: There is always more than a way to move foward. Should You Buy? <video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3156910/extras/5d1916538f4217127bab7128350d38f8.poster.avif?t=1755048063" width=608 height=256 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3156910/extras/5d1916538f4217127bab7128350d38f8.webm?t=1755048063" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3156910/extras/5d1916538f4217127bab7128350d38f8.mp4?t=1755048063" type="video/mp4"></video>If you enjoy the following: - Difficult Puzzles - A Horror-filled, Moody Atmosphere - Passive Storytelling through Enviroment and Lore Books - Physics-Based Gameplay - Unpredictable enemies that change tactics and placement every time you start over. - A Short, yet Dense and Content-rich Game - Time Management - A Game Full of Personality ... Then you will have a great time playing Sepulchron!