A text-based identification mystery game called UNKNOWN PASSENGER 47 is now available on Steam for wishlist, with a release date and price to be announced later. The game is coming to Windows and macOS with support for English, Japanese, Traditional Chinese, Simplified Chinese and Korean text. It has already recorded 60,000 page views on other platforms and a Japanese-language browser demo is available on itch.io. The game is based on a fictional aviation disaster, Soten Airlines Flight SA417, in which 48 bodies were recovered from the scene, but only 47 were identified.