代だい替たい現げん実じつゲーム

noun

alternate reality game; ARG

A genre of interactive networked narrative that uses the real world as a platform, often involving transmedia storytelling.

• あの代だい替たい現げん実じつゲームは、参さん加か者しゃが実じっ際さいの街まち中なかで手てがかりを探さがす仕し組くみだった。

  That alternate reality game had a system where participants searched for clues in the actual city.