escape game: Lost POST

A mysterious mailbox called “POST,” located in a small village that has vanished from the map.

For some reason, only letters that can never reach anyone gather here.

Follow the clues hidden in undeliverable letters and strange mechanisms, and find a way out of this mysterious mailbox.


[ Story ]
At the farthest northern edge lies a small village called Todokenai Village.

Lost letters and people with nowhere else to go eventually find their way to the village’s mailbox, “POST.”

Only letters that will never reach their destination gather here.

As the strange work continues, days that had long stood still slowly begin to move forward.


[ Features ]
• An escape game set in a mysterious mailbox filled with letters that can never be delivered
• An unusual work experience alongside strange departments and coworkers
• A story of small growth leading toward a new journey
• A gallery revealing more about the world and its setting after clearing the game
• Hints available for beginners
• Automatic item use and autosave


[ playPLANT Escape Games ]
An escape game series set in the original world of “PLANT World.”
Each game is a self-contained story, so newcomers can enjoy any title on its own.


• • •

Even if the letters never arrive,
a new story begins here.