Executive Summary

Creators—roughly 48 million authors, indie game developers, educators and agency teams—struggle to design, iterate and ship branching narratives because existing tools either lock content into proprietary visual editors or force plaintext workflows that lack visualization, versioning and automated consistency checks. That gap causes duplicated work, narrative inconsistencies, fragile flag/state logic and slow iteration cycles, especially for teams of 2–10 shipping narrative-heavy projects. You could build a local-first, markdown-native visual editor that maps scenes and choices to a graph, stores canonical source as plain text for Git/Obsidian compatibility, and provides scene-level versioning, branching diffs and one-click exports to Twine, Ink and Unity. Layer in optional LLM-assisted drafting (scene/branch generation and synopsis-to-scenes), automated consistency checks for state/flags, and an integrated playtest runner; offer pro collaboration and engine-integration tiers with a $100 ARPU target while keeping on-device ownership to control cost and privacy. The timing is favorable: LLMs lower the cost of drafting complex branches, indie interactive fiction is resurging, and the local-first/markdown movement creates demand for interoperable tools—together supporting a $4.8B addressable market, a market score of 88/100 and revenue potential of 82/100. To stand out against a medium-competition field, prioritize plain-text portability, deep engine plugins, deterministic testing workflows and an extensible plugin model; realistic challenges are UX complexity, LLM cost modeling and persuading teams to migrate, so early wins should focus on tight Obsidian/VSCode integration and a few high-value export paths.

Market Opportunity

Branching narrative authoring: visual, versioned editor for nonlinear stories targets a $4.8B = 48M creators x $100 ARPU/year (authors, indie game devs, educators, agencies paying for pro branching tools/plugins) total addressable market with medium saturation and a year-over-year growth rate of 18%+ (interactive content and creator tools expanding with indie game and edu-tech demand).

Key trends driving demand: LLM-assisted content generation -- enables rapid scene/branch drafting and automated consistency checks, lowering the barrier to complex branching designs.; Indie game and interactive-fiction resurgence -- small teams can ship narrative-heavy titles and need better tooling for branching logic.; Local-first/markdown ecosystems -- creators want plain-text ownership (Obsidian/VSCode) combined with visual tools, creating demand for interoperable plugins.; Authoring-to-engine pipelines -- demand for one-click export to Twine, Ink, Yarn, Unity/JSON increases tool stickiness..

Key competitors include Twine, Ink / Inkle Studio tooling, articy:draft (Nevigo), Obsidian + Gingko / plugin workarounds.

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Branching narrative authoring: visual, versioned editor for nonlinear stories

Executive Summary

Market Validation

Market Opportunity

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