London, 1891. At exactly 2:13 a.m., every clock on Blackthorn Lane stops. By sunrise, renowned clockmaker Elias Wren has vanished from a locked workshop. Inside, investigators find a burned telegram, a stopped pocket watch, a black wax seal—and a letter bearing your name.

The Blackthorn Cipher is a dark, cinematic interactive mystery that changes with your choices. Enter your name, city, and secret word, then investigate locations, question suspects, collect evidence, solve the R-17 cipher, and decide whom you can trust.

Your decisions can reveal new clues, close certain paths, or lead to one of four different endings, including a hidden finale.

Includes:

• Personalized story details

• Branching choices

• Multiple suspects and locations

• Interactive evidence inventory

• Codes, clues, and puzzles

• Four possible endings

• Atmospheric sound, fog, lighting, and typewriter effects

• Automatic progress saving

• Mobile and desktop support

Playtime: approximately 20–30 minutes.

After purchase, you receive instant access to the private game link and case key. The game runs directly in your browser—no download or installation required.

Headphones and full-screen mode are recommended.

The clock stopped at 2:13. Your investigation begins now.