Iron Arachne logo

Tools for procedural generation of content for tabletop role-playing games

Change Log

Sep. 10th, 2023

Huge rework to species, environment, and encounter generation.

  • Changed how threat level is calculated for encounters.
  • Added more depth to abilities.
  • Reworked how creatures, characters, and species are handled.
  • Refactored a lot of code to not use classes.
  • Split age data and size data into separate concepts.
  • Changed a few things about how environments are generated.

Aug. 8th, 2023

  • Fixed an obscure bug in the religion generator with domains.
  • Added the ability specify species mix for the religion generator.
  • Added the ability to specify the category of religion in the religion generator.
  • Changed the default species and category for the religion generator.
  • Added more species options for the fantasy family generator.
  • Fixed a bug in the Stars Without Number starship generator's model numbers.

Aug. 6th, 2023

  • Added support for saving multiple cultures for later use.
  • Rewrote the entire site to use SvelteKit instead of Svelte.

Jun. 14th, 2023

  • Removed Reddit link.

May 22nd, 2023

  • Added support for the saved culture feature to the religion generator.

May 18th, 2023

  • Made it possible to save a culture from the culture generator for use in the region generator.
  • Tweaked the heights of some of the fantasy species.
  • Fixed a bug in the measurements converter for feet and inches.

Apr. 14th, 2023

  • Expanded the results for the religion generator.
  • Expanded the results for the culture generator.
  • Expanded the possibilities for settlements in the region generator.
  • Expanded the diversity of results for the chop shop generator.

Feb. 18th, 2023

  • Fixed a bug with male height in species stats calculator.
  • Added more descriptions to the biome generator.

Feb. 2nd, 2023

  • Changed the format of Ingenium Second Edition heritage stats.

Nov. 21st, 2022

  • Moved navigation from a sidebar to its own page.
  • Removed two custom fonts.
  • Redesigned the logo.
  • Made other design tweaks.
  • Switched to Vite for build and development.

Nov. 18th, 2022

  • Made min rooms and max rooms for dungeon generator configurable.

Nov. 17th, 2022

  • Added first version of AD&D 2e character generator.

Oct. 1st, 2022

  • Fixed a bug in culture generation with Elvish culture names.
  • Updated the build process to use Node.js 18.

Jul. 29th, 2022

  • Added more variety to the cyberpunk drug generator.

Jul. 26th, 2022

  • Improved display of language generator.
  • Added more IPA phonemes to the language generator.
  • Changed weighting of phonemes for the English-like phoneme set to reflect actual frequency of English phonemes.

Jul. 24th, 2022

  • Added support for random sets in the word generator.
  • Added Japanese-like names to the region generator.
  • Added Elvish-like names to the region generator.
  • Made regions use their name set for their ruling figures.
  • Made region name set configurable.
  • Displayed region sovereignties seperately from vassal realms.
  • Added very basic language generator, to be expanded and integrated into other generators later.

Jul. 7th, 2022

  • Changed how invented words are generated and added new tools to that system. This affects all generated names.
  • Reworked the region generator to change how neighbors are constructed.
  • Added a tool for testing invented word patterns.

Jul. 3rd, 2022

  • Added a handful of magic weapons to dungeon generation.
  • Added a system for generating magic items to the dungeon generator.

Jun. 29th, 2022

  • Added light sources to the dungeon generator.
  • Reorganized dungeon generation code to be easier to read, and fixed a few bugs in the process.

Jun. 24th, 2022

  • Added aarakocra, aasimar, centaur, dark elf, deep gnome, duergar, firbolg, high elf, and hobgoblin to sentient species.
  • Fixed several bugs in the selection of sentient species during encounter creation.

Jun. 23rd, 2022

  • Added display of secret doors to dungeon map.
  • Added GM text and player text to dungeon generator.
  • Made secret doors in dungeon generator hidden on one side.
  • Reworked dungeon generator room generation algorithm to include more loops.
  • Added many more creatures and encounter types to the dungeon generator.
  • Added threat levels as a generic challenge indicator to the dungeon generator.
  • Expanded treasure hordes and made individual treasure carriable by characters.
  • Added more variety to the types of rooms generated by the dungeon generator.
  • Added equipment to character encounters in the dungeon generator.
  • Added abilities to encounter display in the dungeon generator.

Jun. 9th, 2022

  • Added a star nation generator.
  • Did a little behind-the-scenes cleanup of the star system generator.

Jun. 5th, 2022

  • Added the initial version of a dungeon generator.
  • Added goblins, orcs, and trolls as sentient species.
  • Added a creature system, only used by the dungeon generator right now.
  • Added a treasure system, also only used for the dungeon generator so far.

Apr. 22nd, 2022

  • Tweaked the SVG rendering of planets in the star system generator to properly size them.
  • Added comparison to Earth for some planet statistics, for context.
  • Reorganized the planet and star generation code a bit behind the scenes.
  • Made the graphics on the Planet Generator much more realistic.

Apr. 1st, 2022

  • Added anchor and barrel heraldic charges.
  • Added link to the source code in the footer.

Feb. 4th, 2022

  • Added ability to allow or disallow occupations by race for DCC character generator.
  • Expanded how culture taboos are generated.
  • Rewrote how character, town, region, and culture names are generated.
  • Rewrote how towns are structured to make it easier to implement certain future features.
  • Added an environment/climate/biome system to add diversity to towns and regions.
  • Made cultures use the religion generator for religion information.
  • Added country and town name lists to the culture generator.

Jan. 27th, 2022

  • Added tieflings.

Jan. 23rd, 2022

  • Added about twenty new occupations to the DCC character generator.
  • Fixed a bug in the DCC character generator where HP could be lower than 1.
  • Made elf, dwarf, and halfling characters in the DCC character generator have names matching their cultures.

Jan. 22nd, 2022

  • Reworked the biome and climate system underlying region generation.
  • Added geographic features to town descriptions.
  • Added Dungeon Crawl Classics character generator.

Jan. 17th, 2022

  • Added a fantasy family generator.
  • Changed how personalities are generated to be faster and more rational.
  • Reworked how species are structured to allow for a better physical trait system.
  • Fixed a bug in age categories.
  • Alphabetized the sidebar menu.
  • Added a change log page for all the changes and modified the home page to only show the most recent.

Jan. 14th, 2022

  • Fixed a bug where non-humans would always be women.
  • Added names, types, and rulers to regions.
  • Added claimant list to regions, including their heraldry.
  • Added proper kingdom and empire generation subsystems instead of just names.
  • Added ruler heraldry.
  • Made unique name generators for each fantasy race.
  • Expanded the options available to the underlying made-up word generation algorithm. Better names!
  • Added dragonborn.

Nov. 19th, 2021

  • Fixed a bug in the religion generator that was causing it to crash.

Nov. 18th, 2021

  • Rewrote the heraldry system to allow much greater flexibility.
  • Added the ability to specify the number of charges and their tincture to the heraldry generator.
  • Expanded the variety of personality descriptions for characters.

Oct. 30th, 2021

  • Expanded how gender is handled behind the scenes.
  • Added male and female controls to Species Stats.
  • Added a little more variety to character descriptions.

Oct. 16th, 2021

  • Added spooky ship generator.

Sep. 26th, 2021

  • Added ability to filter heraldry charges by tag.

Aug. 13th, 2021

  • Fixed bug in seed generator that right-padded it with zeroes.
  • Added more variety to town names.
  • Made the random seed field monospace.
  • Expanded the list of clothing in the fantasy equipment lists.

Jul. 13th, 2021

  • Added more variety to biomes.
  • Added an arms manufacturer generator.
  • Fixed a bug in calculating ordinals for the changelog.

Jul. 9th, 2021

  • Changed how star and planet names are constructed.
  • Added a chance for inhabited planets to have a notable starport.
  • Changed how planetary cultures and governments are generated.

Jul. 8th, 2021

  • Rewrote the site from JavaScript + Vue + Webpack to TypeScript + Svelte + Rollup.
  • Fixed several subtle bugs in the Stars Without Number generators.
  • Made the heraldry generator faster.
  • Changed how this change log is structured and displayed.

May 2nd, 2021

  • Expanded culture generator with music style.
  • Added social organization to the culture generator.

Apr. 21st, 2021

  • Added a religion generator.

Apr. 19th, 2021

  • Made the magic weapon generator more flexible.

Apr. 16th, 2021

  • Added a magic weapon generator.

Apr. 8th, 2021

  • Added personality traits to character descriptions.
  • Added notable members to organizations.

Mar. 2nd, 2021

  • Made barren planets a little deformed in WebGL rendering.
  • Tweaked cloud layers on some planet types in WebGL rendering.

Mar. 1st, 2021

  • Added model numbers to SWN starships.
  • Added more detail to star generation.
  • Added hazards to planet generation.

Feb. 26th, 2021

  • Made star system generator and planet generator use the same underlying library for planet generation
  • Updated button styles for each of the sections

Feb. 25th, 2021

  • Added the planet generator
  • Fixed missing hardpoints attribute to SWN starship generator

Feb. 11th, 2021

  • Added missing speed and armor attributes to SWN starship generator
  • Fixed an index bug in several generators
  • Added the ability to save Uncharted Worlds characters
  • Added a new town name generation scheme
  • Made several major site design changes

Feb. 8th, 2021

  • Added Stars Without Number starship generator

Feb. 5th, 2021

  • Fixed the download of heraldry images
  • Added ability to download SWN characters

Feb. 4th, 2021

  • Stars Without Number character generator added

Jan. 25th, 2021

  • Fantasy equipment list page has been added

Jan. 19th, 2021

  • Planets in the Star System generator now have notable features added to their descriptions