{"rewrite":{"id":"r_14acdacc6f571ea78061b2cc","clusterId":"c_60e5da36f4b67418f355fb65","slug":"cluster-metaverse-lab-s-ai-npc-research-accepted-at-cedec-for-second-year","model":"deepseek-v4-flash","headline":"Cluster Metaverse Lab's AI NPC Research Accepted at CEDEC for Second Year","summary":"Cluster's Metaverse Lab will present at CEDEC2026 for the second year in a row, sharing findings from a 5,000-person study showing that LLM-based AI NPCs increased new player session time by 2.2x and boosted next-day login rates by 33.5% per additional day of contact. The session introduces a Conversational Knowledge Acquisition Loop for cooperative play.","whyItMatters":"The research provides concrete, large-scale evidence that AI NPCs can improve player retention through cumulative relationship building, moving beyond theoretical discussions to measurable design guidelines.","webCardHtml":"\u003cp\u003eThe session is scheduled for July 24, 15:00 to 16:00, at Pacifico Yokohama North. Researchers Hikari Yanagawa and Yuichi Hiroi will present a 60-minute regular session titled \u0026#34;AI NPCs That Learn With You and Make You Want to Meet Again.\u0026#34; The talk draws on a 31-day, 5,000-person field study conducted inside the commercial metaverse cluster. Players who interacted with the AI NPC stayed roughly 2.2 times longer, and each additional day of contact raised the next-day login rate by 33.5 percent. The team also developed a Conversational Knowledge Acquisition Loop (CKAL) that lets the AI learn game mechanics through dialogue rather than acting omniscient. A separate 141-person VR experiment quantified how the NPC\u0026#39;s competence and initiative affect player engagement and sense of achievement.\u003c/p\u003e","blueskyPost":"Cluster's Metaverse Lab returns to CEDEC with data from a 5,000-person study: AI NPCs that build cumulative relationships boosted new player session time 2.2x and next-day login rates by 33.5% per contact day. A new CKAL system lets the AI learn alongside players.","twitterPost":"Cluster's Metaverse Lab is back at CEDEC for year two. A 5,000-person study found LLM-based AI NPCs increased new player session time 2.2x and next-day login rates by 33.5% per day of contact. They also built a CKAL system for cooperative play.","threadsPost":null,"newsletterBlurb":"Cluster's Metaverse Lab will present at CEDEC2026 for the second consecutive year. Their research, based on a 5,000-person field study, shows that LLM-based AI NPCs can significantly improve player retention through repeated interactions. The session also introduces a new Conversational Knowledge Acquisition Loop designed to make AI NPCs learn alongside players.","attributionJson":"[{\"source\":\"PANORA\",\"url\":\"https://panora.tokyo/archives/148837\",\"title\":\"クラスターメタバース研究所、CEDEC2026でメタバースにおけるAIエージェントに関する研究発表が公募セッションに採択され2年連続で登壇決定\"}]","lintFlagsJson":null,"lintHits":0,"costUsd":0,"inputTokens":5556,"outputTokens":1291,"status":"published","repairAttempts":0,"nextRepairAt":null,"factsAttemptedAt":1784148240,"createdAt":"2026-07-15T20:36:54.000Z","publishedAt":"2026-07-15T20:37:28.000Z","updatedAt":"2026-07-15T20:36:54.000Z"},"cluster":{"id":"c_60e5da36f4b67418f355fb65","canonicalTitle":"クラスターメタバース研究所、CEDEC2026でメタバースにおけるAIエージェントに関する研究発表が公募セッションに採択され2年連続で登壇決定","representativeArticleId":"a_c65e8b56832e06b798ae19ae","sourceCount":1,"writtenSourceCount":1,"writeAttempts":0,"isSolo":true,"entitiesJson":"{\"anime_titles\":[],\"manga_titles\":[],\"work_titles\":[],\"studios\":[],\"people\":[],\"type\":\"announcement\",\"domain\":\"industry\",\"is_roundup\":false}","contentType":"news","status":"published","firstSeenAt":"2026-07-15T05:12:47.000Z","lastSeenAt":"2026-07-15T05:12:47.000Z","updatedAt":"2026-07-15T20:37:29.000Z"},"attribution":[{"source":"PANORA","url":"https://panora.tokyo/archives/148837","title":"クラスターメタバース研究所、CEDEC2026でメタバースにおけるAIエージェントに関する研究発表が公募セッションに採択され2年連続で登壇決定"}],"entities":{"anime_titles":[],"manga_titles":[],"work_titles":[],"studios":[],"people":[],"type":"announcement","domain":"industry","is_roundup":false},"keyFacts":null}