Games · From the Field
LIVE 404 turns audience comments into controls for a horror game
Daichi Hiruma’s prototype won the Tokyo AI and OpenAI 100-Hour Game Builder Challenge. The organizer says viewers guide a streamer while AI generates the video.
Reporting updated Sep 23, 2026

THE TAKEAWAY
The useful test is whether players can see their choices change the next scene. Start with one clear action and a consequence they can recognize.
What Happened
Tokyo AI’s recap named LIVE 404 the grand-prize winner after the September 17 showcase at SAKURA DEEPTECH SHIBUYA. It describes a cinematic horror game set in haunted locations, with viewer comments directing the streamer.
The host’s announcement set two tracks: AI-native games and tools for game production. The organizer reports 45 teams and 11 finalists. These were projects built for a 100-hour challenge.
Why It Matters
For a small team testing audience-directed play, the hard part is making the connection between an instruction and its result obvious. A player who asks the streamer to investigate something needs to recognize what changed. Otherwise, the experience can feel like watching a video that happens to have a comment box.
What to Look for in the Demo
Try following one decision through to the next scene. How long does it take, and does the response still make sense after several choices? The award recap describes the idea and result of the competition; it does not establish those performance details. Tokyo AI says finalist videos will follow.

