Murder Mystery Writers Dissect Dialogue as Game Mechanics at CEDEC 2026
The lecture reframes player communication, often treated as an uncontrollable extra, as a core designable layer of multiplayer games, with the association's writers proposing a common structure applicable to digital games.
Reporting from 1 source: 4Gamer.net.
At CEDEC 2026, three members of the Japan Murder Mystery Writers Association presented a lecture on designing dialogue as game mechanics. Shota Mizui, Madoka Kyubi, and Makoto Akiyama argued that communication between players is not a bonus layer but the core of the subjective experience in multiplayer games. Mizui reduced all games to an input-output cycle and positioned competitive play as non-verbal dialogue with the game system as translator.
The lecture opened with a disclaimer: this was not an introduction to murder mystery games. Mizui stated the purpose was to discuss the common structure of game design across all communication games and to give attendees a structure applicable to digital games.
He reduced games to a simple cycle: player input, system processing, output, judgment, and repeat. When play becomes person-to-person, that cycle changes. Player A's input becomes output to Player B through the game, and B responds. Mizui called this non-verbal dialogue with the game system as translator, and asserted that at the point a game is competitive, all games are communication games.
Multiplayer adds another layer outside the system: voice chat and raw dialogue. Mizui argued this layer, though it bypasses system processing, is the core of the subjective experience. The problem is control. Controller input can be predicted, but natural language dialogue carries infinite information and high freedom.
Synthesized by Yomimono from the 1 cited source below, including Japanese-language reporting where cited, then editorially reviewed before publishing.