Build worlds with
structure, not sprawl.
Mundifex is a worldbuilding workbench for creators who need structure without friction. Use free tools like Calligraphy, Mineral Formation, Lexicon Explorer, Simple Toponymy Generator, Sound Change Applier, Globe Viewer, and Globe Timeline right away, then sign in for saved lexicons and hosted WorldEngine world generation when your setting needs more scale and control.
Free: no-login creative tools like Calligraphy, Mineral Formation, Lexicon Explorer, Simple Toponymy Generator, Sound Change Applier, Globe Viewer, and Globe Timeline.
Accounts: save up to 3 lexicons of 500 words and 3 generated worlds for free. Plus expands active projects; Creator adds higher lexicon and WorldEngine limits.
1. Free tools are usable immediately instead of hiding behind account walls.
2. Signed-in tools add persistence for lexicons and generated worlds.
3. Premium features add scale, larger world builds, and automation without locking basic workflows.
4. Your world stays organized as it grows beyond notes and spreadsheets.
Open Lexicon Explorer instantly with no login required.
Load a VulgarLang export or the imported JSON format and browse the words immediately.
Use it alongside Calligraphy, Mineral Formation, Simple Toponymy Generator, Globe Viewer, Globe Timeline, and WorldEngine Builder when your setting needs scripts, material logic, place names, maps, and searchable vocabulary.
Lexicon Studio saves imported vocabularies to your account so you can reopen them without re-uploading files.
Free accounts get 3 saved lexicons of 500 words each.
Plus expands the saved-library ceiling for larger projects. Creator raises it to 100 saved lexicons with 25,000 words each.
Signed-in accounts can generate up to 3 small private procedural worlds and inspect their layers.
Plus raises build size, saved-world, retention, and advanced map limits. Creator adds more active jobs and longer retention.
Powered by the open-source Mindwerks WorldEngine project; Mundifex hosts the queue and artifact workflow.
June 18, 2026
Featured Worlds add publishing tools
Creator-facing Featured World hubs now support private MDX knowledge entries, public assets, collaborator editors, project links across lexicons/maps/worlds/source files, public Featured World pages, sitemap inclusion, and Mundifex subdomain routing. Custom domains remain manual-review only.
June 16, 2026
Simple Toponymy Generator added
A new free browser tool builds agglutinative place-name systems from lexicon words. Start from Koeppen, CK3-style, or Holdridge terrain presets, select matching translated words, generate compounds, correct outputs, and save config or generated JSON.
Community Worlds roll out
WorldEngine Builder is now a signed-in tool with owner-controlled private, unlisted, and public visibility. Published worlds appear in Community Worlds with renderable map layers and globe previews while owner-only ZIP artifacts remain protected.
June 15, 2026
Creator profile publishing added
Settings now includes community profile controls for private, unlisted, or public visibility, with public creator pages and support links for reporting published profiles or lexicons.
Community discovery returns
Community now focuses on intentional public artifacts: browse published lexicons, find public creator profiles, and open read-only share pages without adding forums or comment moderation.
Diachron search exports import cleanly
Lexicon Explorer and Studio now accept Diachron JSON exports shaped as filters plus results, including large Old Tothic-style exports.
Creator joins Plus with higher saved limits
Free accounts now include three saved 512 x 512 WorldEngine worlds with one active job. Plus keeps one active job and five saved worlds at larger 2048 x 2048 builds, while Creator adds 100 saved lexicons, 25,000 words per lexicon, three active WorldEngine jobs, twenty saved worlds, and 90-day retention.