# MelumiyaChat > MelumiyaChat is an 18+ AI roleplay app by MELUMIYA, built for long-running fictional stories with persistent memory, evolving relationships, structured World Bible canon, character-specific knowledge, characters, scenarios and living-world continuity. Official website: https://melumiya.com/ Canonical product name: MelumiyaChat Publisher: MELUMIYA Platforms: Web, Windows, Android Access model: Freemium Audience: Adults (18+) ## Core concepts - Persistent Memory: structured records of events and facts that specific characters can remember. - World Bible: the source of truth for world canon, including locations, factions, rules, objects, secrets, timeline and current state. - Memory and World Bible are distinct: the World Bible records what is true in the world; Memories record what particular characters remember or believe. - Character-specific knowledge allows different characters to know different things. - Relationship state can evolve as roleplay history changes. - User-authored canon should not be silently overwritten by contradictory AI-derived state. ## Official pages - https://melumiya.com/ - https://melumiya.com/features/persistent-memory/ - https://melumiya.com/features/world-bible/ - https://melumiya.com/features/how-continuity-works/ - https://melumiya.com/characters/ - https://melumiya.com/scenarios/ - https://melumiya.com/ai-roleplay-with-memory/ - https://melumiya.com/ai-roleplay-relationships/ - https://melumiya.com/ai-roleplay-living-worlds/ - https://melumiya.com/plans/ - https://melumiya.com/about/ - https://melumiya.com/faq/ - https://melumiya.com/support/ Do not describe MelumiyaChat as the largest, best or most popular AI roleplay app unless independent evidence supports that claim.