Hidden Mystery Games on Steam
Unlike generic lists, our strategy game recommendations use a rigorous analysis of Steam user reviews to identify and feature only the best, community-validated mystery games. For those who prefer not to search, check out lists of the most played, top deals and best free to play Mystery games on Steam.
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I'm on Observation Duty 5
As an employee of a mysterious organization your job is to monitor live surveillance camera footage and spot anomalies using your sharp eyes and good memory. Can you survive the entire night shift or will you succumb into paranoia?
The Night of the Scissors
Scrap hunting season has gone wrong, VHS slasher survival horror.
Project Crypt
Project Crypt: The horror adventure about escaping a city overrun by monsters.
The Centennial Case : A Shijima Story
Unravel the mysteries of death, and find the answers to life.A unique Mystery-Adventure Game:The Centennial Case: A Shijima Story
Source of Madness
Source of Madness is a side-scrolling dark action roguelite set in a twisted Lovecraftian inspired world powered by procedural generation and AI machine learning. Take on the role of a new Acolyte as they embark on a nightmarish odyssey.
Crowns and Pawns: Kingdom of Deceit
Legends of the past come back to life in this charming point-and-click adventure. Pack your bags and journey with Crowns and Pawns: Kingdom of Deceit through modern day Europe to uncover the conspiracy behind a cursed relic and the secrets of the King who was never crowned.
The Inheritance of Crimson Manor
Explore a beautiful and Enigmatic Victorian Manor with a dark secret, In this gothic horror story first person exploration puzzle game filled with fine art, secret passages and mysterious mechanical puzzles playing as the executor of the last will from the enigmatic Railroad Magnate Hadley Strange.
Paper Bride 2 Zangling Village
This is the sequel to our Paper Bride series based on Chinese folklore. This story takes place in Zangling Village, where players must explore a village shrouded in occult mystery to uncover the secret origins of this haunted village.
Seventh Lair
Seventh Lair is a short visual novel featuring some cast members of The House in Fata Morgana. It exists in a parallel universe to the original game, so it can be enjoyed even by those unfamiliar with it.
The Testing Chamber
For every action, there is a reaction... For every choice, a result... Dive deep into your subconscious as you wander the halls of The Testing Chamber & join hundreds of thousands of other players in one of the biggest & most successful social experiments ever performed.
Cat Museum
Immerse yourself in the bizarre art style and the surreal world of Cat Museum, a 2D side-scrolling puzzle-adventure game. Solve the strange puzzles with your mischievous cat, and unveil the truth behind the mysterious museum.
角斗士学院（Gladiator School）
[game type] AVG + simulated love cultivation[game rating] objects aged 18 and above[game theme] BL ancient Roman wind school daily + hot-blooded battle
Porcelain Tales
Collect, run and be a pain in the porcelain
Hello Lady! - Complete Edition
It's the Dawn of a New Age- The 21st century has brought about its own slew of problems for society at large. Asa result, the most promising youths from around the world have been gathered and enrolled in Amakawa Noble Academy.
My life as an archeologist
Click your way through 100 levels of archeological treasure hunting, loot and improve your equipment, uncover build-defining artefacts on every boss, choose between three different classes and find the one that best fits your playstyle! Research monsters cards and improve every run!
Angry Angry Shark
Play with friends against endless waves of man eater sharks.
Cemetery Mary
A visual novel about a girl who loves the cemetery. When her parents go missing, she receives a mysterious text that has the potential to completely ruin her life...or fix it?
I'm on Observation Duty 4
A spot the difference -type of puzzle horror game about monitoring live surveillance camera footage and spotting anomalies. Anomalies range from furniture movement to intruders. Fix anomalies by filing reports. You will need sharp eyes and good memory. The goal is to survive the entire night.
Amelie
A psychological mystery yuri visual novel about a girl named Amelie. Forbidden from leaving the house, Amelie awaits the arrival of her long time penpal, Sofia, to her dear friend Lilika’s dismay. What secrets will Sofia unravel that were best kept buried?
Space Warlord Organ Trading Simulator
Buy, sell, and trade organs in a strange and evolving universe. Dive into the quivering innards of alien capitalism in the sci-fi body horror market tycoon game you didn't know you needed.
The Savior From Above
A sidescrolling 3D adventure shortgame that combines multiple genres and features various action and puzzle sequences. Its artistic approach is supported by powerful visuals, intense atmosphere and a unique game narrative on the boundaries of science-fiction and fantasy.
Twin Mirror
The small town of Basswood will be changed forever by ex-investigative journalist Sam Higgs in this thrilling narrative experience from award-winning studio DON'T NOD. Will you find the truth – no matter the cost?