BBC Worldwide have launched a Sherlock app for Apple’s iOS devices today. The puzzle game asks players to join Sherlock’s ‘homeless network,’ solve cases and features specially recorded video with the cast.

Details:

Sherlock Holmes has an urgent message for you. He needs you to help him solve his latest cases. Using your mobile phone, you must navigate the streets of London discovering clues, solving puzzles and piecing together the answers.

Starring Benedict Cumberbatch as Sherlock, Martin Freeman as John and Mark Gatiss as Mycroft, Sherlock: The Network is the official Sherlock app, containing ten new cases to solve with exclusive video, games, puzzles and a leaderboard for top players.

Sherlock: The Network is designed to extend the original programme beyond the television set directly into the hands of fans by inviting players to become one of the detective’s trusted Homeless Network across London. Players unscramble audio recordings, break into computers, decrypt codes and assemble images to gain clues. From missing persons and bomb threats to poison and murder – all the threads lead back to Sherlock.

Using a bespoke mapping and messaging interface, participants navigate virtual London by tube, taxi or on foot. They head to different locations across the capital to hear from witnesses, collect and store evidence, unlock clues, earn money and pick up valuable tools to help accelerate their mission – all with the aim of cracking each of the cases as quickly as possible to solve the final mystery.

Trailer: