# r/worldbuilding > One of Reddit's largest creative communities for building fictional worlds, with 1.9 million members spanning writers, game masters, and artists across fantasy, sci-fi, and speculative fiction. Source: https://selfpublishingdirectory.com/communities/rworldbuilding Website: https://www.reddit.com/r/worldbuilding/ Category: Author Communities (https://selfpublishingdirectory.com/communities) Pricing: free — $0 AI-powered: no Tags: reddit, worldbuilding, fantasy, science-fiction, craft, maps, lore, magic-systems, tabletop Last verified: 2026-06-18 Best For: SFF authors building fictional settings who want multidisciplinary feedback on geography, linguistics, economies, and maps Community Type: social-group Genre Focus: fantasy, sci-fi Member Count: 1.9 million+ members Platform: reddit r/worldbuilding ("Explore Every Impossibility") is one of Reddit's largest creative communities, with approximately 1.9 million members spanning fiction writers, tabletop game masters, map artists, and anyone engaged in building fictional settings. Unlike craft-focused writing subreddits, its core subject is the setting itself — the systems, cultures, histories, and physics that make a world coherent and believable. The community is explicitly multi-audience: its own tagline names "artists, writers, gamemasters, musicians, programmers, philosophers and scientists alike." Experts in geography, linguistics, sociology, and physics regularly contribute accessible explanations for creative use. This depth of specialist knowledge distinguishes it from general writing communities. **Note on member count:** Reddit removed public subscriber counts on September 9, 2025. The 1.9 million figure is derived from third-party tracker snapshots (GummySearch) and cannot be directly verified from the subreddit page. ## Community Rules and the Context Requirement r/worldbuilding enforces five core rules: Be Kind, Be On Topic, Put in Effort, DIY Community (collaborative, grassroots ethos), and Avoid NSFW where possible. The most important rule for new members is the **context requirement**: all posts must include sufficient worldbuilding context. For image posts — maps, artwork, infographics — this means a description that lets a reader understand what they're looking at and ask informed questions about it. Image posts without adequate context are removed by moderators. This is actively enforced and catches many first-time posters off guard. Self-promotion of books is not appropriate here. Sharing your novel's map or culture as genuine worldbuilding content is welcomed; directly promoting a book for sale is off-topic by the "Be On Topic" rule. ## Extended Community: The r/Worldbuilding Network Beyond the main subreddit, the r/Worldbuilding Network (worldbuilding.network) runs structured programs on Discord: - **Enthusiast Topics** — every Tuesday/Wednesday for 48 hours; deep-dive discussions on specific worldbuilding craft topics nominated by the community - **World Spotlight** — weekend sessions where one member hosts a Q&A about their world, selected by monthly lottery - **Worldbuilding Sprints** — focused work sessions with community feedback and motivation - Maintained **resource lists** covering worldbuilding tools, name generators, map-making guides, and reference materials ## Who It's For - **SFF fiction authors developing settings:** Authors of fantasy, science fiction, alternate history, or any speculative genre benefit from the depth of specialist knowledge here. Questions about how plate tectonics affect your continent, how a barter economy would realistically develop, or how to build a monotheistic religion with internal consistency get substantive answers. - **Authors seeking map and visual feedback:** The community has significant expertise in fantasy cartography and gives detailed feedback on fictional maps before publication. - **Authors researching tropes to subvert:** Seeing thousands of worlds under construction reveals what has become cliché — useful for authors seeking to distinguish their work. **Pricing:** Free. Reddit Premium ($5.99/month) removes ads but has no functional effect on community access. ## Strengths - **Specialist knowledge depth:** Fields like geology, linguistics, and economics are regularly represented. This is not just writers helping writers — it's a multidisciplinary community. - **Visual worldbuilding expertise:** r/worldbuilding has a strong map-making and visual design tradition. Authors who want to develop maps, flags, or sigils before publishing will find detailed feedback unavailable in most writing communities. - **Scale and archive:** 1.9 million members creates a deep searchable archive of discussions covering virtually every worldbuilding challenge a speculative fiction author might face. ## Limitations - **Not a publishing or self-publishing resource:** r/worldbuilding does not discuss KDP, IngramSpark, cover design, pricing strategy, or distribution. For publishing guidance, use r/selfpublish or r/fantasywriters. - **Content mix includes non-fiction-writers:** Game masters, programmers, and hobbyist worldbuilders who have no intention of publishing mix freely with fiction authors. Advice is useful regardless, but the community is not writing-career-focused. - **Strict moderation of context rule:** Image posts that lack adequate explanation are removed quickly, which can frustrate new members accustomed to sharing images without description. - **AI policy unverified:** No formal AI content rule is publicly documented in indexed sources. The "Put in Effort" rule acts as a practical filter against AI-generated image dumps, but a specific policy cannot be confirmed. ## Alternatives r/fantasywriters (~947,000 members) covers fantasy-specific craft including some self-publishing discussion, making it more directly useful for published authors. For publishing mechanics, r/selfpublish is the practical resource. Authors who need both setting development and craft/publishing guidance should use both communities.