Hidden Observatory is a hidden object puzzle game set near a secret UFO monitoring center.
Secret Castle
Frozen Cave
Lord of Gold
Unseen Visitors
Temple of Wisdom
Nothing Like Home
Labyrinth Island
Still Alive
Secret Pirate Gold
Possessed House
Romantic Recipe
The Unsolved Murder
Hidden Lake House
Stealing History
The Unknown Genius
Desert Island
Enchanted River
Journey to the Unknown
Lost in the Wild
Pirate Rebels
Nightmare Rules
Western Outlaws
The Captain's Treasure
Caught in a Nightmare
Christmas Presents
Fairy Powers
Silent House
Perfect Friendship
The Damned Queen
Temple Keepers
Through the Shadowland
Perfect Hideaway
Secret Civilization
15 Minutes to Midnight
The Fearless Explorers
Hospital Helpers
Strange Light
Risky Journey
The Winter Game
Pet Farm
Deadly Secret
Forget But Not Forgive
Warning Doubt
Garden Mystery
Adorn Your Home
Spy Mission
Village Hosts
Hotel Murder
Hollow Place
Precious Porcelain
Mystery to Solve
The Last One
Theft in Paradise
Faraway Cousin
Midwinter Moon
Cursed Gold
Forbidden Lake
The Golden Land
Murder at 19th Avenue
The Lost Farmer
Crime at the Party
Capture Nature
Perfect Christmas
Next Door Criminals
Detective Academy
Hidden Magic OG
The Conspiracy Club
Furious Storm
Window Silhouette
Precious Collection
Banished Ghost
Insecure Suburb
Mysterious Tram
Forest of the Secrets
Secret Island Treasure
True Adventure
Abandoned Film Studio
Secret Romance
Proof of Crime
Broken Justice
The Place of Truth
Endless Romance
Paranormal Police
Fairest of All
Midnight Song
Caribbean Mysteries
Backyard Party
Midnight Ritual
The Demon Trap
Invisible Gang
Eternal Wisdom
New Teachers
Lost Train
Years of Shadows
Farm Sweet Farm
Secret Bounty
Card Collection
Magic Inheritance
King of Fear
Lunar Murder
