Alternatives and similar repositories for core-rules:

Users that are interested in core-rules are comparing it to the libraries listed below

• brunobord / the-black-hack
  The Black Hack RPG text and tables, ready to be translated into your language
  ☆66Updated last year
• fate-srd / fate-srd-content
  Fate SRD content, nicely formatted
  ☆50Updated last year
• amazingrando / blades-in-the-dark-srd-content
  SRD for the Blades in the Dark RPG
  ☆182Updated last year
• Vladar4 / itdr
  Into the Dungeon: Revived — Rules for fantastic adventure games playable with paper and pencil and polyhedral dice.
  ☆60Updated 3 weeks ago
• autorolltables / autorolltables.github.io
  A set of auto roll tables for use in tabletop RPGs
  ☆119Updated last year
• Sagelt / Dungeon-World
  A tabletop roleplaying game.
  ☆376Updated last year
• ben / foundry-ironsworn
  Ironsworn and Starforged, for Foundry VTT
  ☆74Updated last week
• nhr / swn
  SWN Sector Generator: a gaming utility for use with the Stars Without Number RPG by Sine Nomine Publishing
  ☆60Updated last month
• copperdogma / dnd-phb-5e-index
  Dungeons & Dragons 5th Edition Revised Index
  ☆106Updated 6 years ago
• funkaoshi / randomcharacter
  Generates a random D&D character.
  ☆78Updated 7 months ago
• mpigsley / sectors-without-number
  A random, revised edition compliant, stars without number sector generator
  ☆113Updated last year
• gcoulby / IronswornCompanion
  Ironsworn Companion is a digital toolkit for playing the tabletop roleplaying game Ironsworn.
  ☆58Updated 10 months ago
• ChaosiumInc / QuestWorlds
  Files for the Quesworlds SRD
  ☆53Updated last month
• kensanata / hex-mapping
  Tools to work with hex maps for roleplaying games. Usually web applications written in Perl and producing SVG output.
  ☆70Updated last year
• kensanata / gridmapper
  A little Javascript/SVG application to create dungeon maps for role-playing games.
  ☆66Updated 4 months ago
• SHiLLySiT / IronWriter
  IronWriter is an open-source writing tool for solo playthroughs of the free tabletop RPG Ironsworn. Focus on writing your story and let I…
  ☆56Updated last year
• ElectricCoffee / SirenRPG
  Open source tabletop RPG that focuses on being fairly easy to learn and use.
  ☆29Updated 3 years ago
• yochaigal / Cairn-FoundryVTT
  Cairn for FoundryVTT!
  ☆33Updated 3 weeks ago
• orffen / cepheus-srd
  The Cepheus Engine SRD in HTML format
  ☆34Updated 2 years ago
• funkaoshi / hexenbracken
  The Hexenbracken!
  ☆22Updated 2 years ago
• rsek / datasworn
  The successor to the original Datasworn repository and Dataforged package, which provide game rules from the Ironsworn and Ironsworn: Sta…
  ☆128Updated 2 months ago
• inexorabletash / travellermap
  The source code to TravellerMap.com
  ☆124Updated this week
• openadventure / Open-Adventure
  Open Adventure Tabletop Game
  ☆67Updated last year
• alessio29 / savagebot
  Discord Bot
  ☆50Updated 6 months ago
• Noobulater / gmforge-core
  The Core Scripts in gmforge
  ☆35Updated last year
• Zireael07 / awesome-tabletop-rpgs
  Awesome list of free and/or open source tabletop RPGs
  ☆190Updated last month
• Asmor / 5e-monsters
  Kobold Fight Club
  ☆258Updated 2 years ago
• Unbound-Legends / RPG-Web-Character-Creator
  Character generator for Fantasy Flight Games' Genesys
  ☆61Updated last year
• shanel / roller
  Dice roller written in Go and Javascript to run on Google Appengine
  ☆27Updated 4 years ago
• adventurerscodex / adventurerscodex
  Experience the next step in tabletop RPGs
  ☆238Updated 6 months ago