What is //signal., the authorized Lain fan game?
A fan game with a blessing: made by volunteers since 2019 under NBCUniversal’s own derivative-works license, and released in 2025 to more demand than anyone budgeted for.
//signal. is an occult RPG, its makers also call it a visual novel, built by the doujin circle Team MJM. Development began in 2019, led by Makkura Yuno, a fan of the original PlayStation game, and the finished work deliberately braids the franchise together: its cast is drawn from both the anime and the 1998 game, Touko Yonera’s world included. It exists because of lainTTL, NBCUniversal Entertainment Japan’s official guidelines allowing Japanese residents to make derivative Lain works until July 6, 2028, and it carries a recommendation from Chiaki J. Konaka, Lain’s own writer.
THE RELEASE
May 19, 2025The numbers
A free trial arrived March 29, 2025; the full game launched May 19, 2025 on Steam and itch.io for Windows and macOS, priced at ¥1,000 (about $7) digitally, with a limited CD-ROM edition at ¥1,700 (about $11).
The miscalculation
Team MJM planned 300 physical copies. Pre-orders passed 5,000 within a month. A Campfire crowdfunding campaign opened on April 15, 2025 with a goal of ¥1.5 million (about $10,000), and by early May had raised over ¥12 million (about $80,000) to fund the additional copies and campaign rewards.
The shape of it
Players explore the Wired by collecting logs, emails, and diaries to piece together past events and restore broken connections, the 1998 game’s filing-cabinet method, rebuilt by its own readers a generation later. The team describes the work as a tribute ahead of the series’ 30th anniversary.
WHY THIS PAGE EXISTS
The doctrine, demonstratedAuthorized, not tolerated
//signal. is not a bootleg that slipped past a rights holder. It is a derivative work under a published license, recommended by the original writer, built by volunteers over six years. Lain may be the only 1998 anime whose fandom operates this way, because the property itself handed them the keys.
Twenty-seven years
The first Lain game was an official product nobody played. The second is a fan product, officially blessed, that five thousand people pre-ordered. That inversion is the whole recent history of this series in one fact.