24XX is the free version of the rules used by the2400 series of RPGs, released under aCreative Commons Attribution 4.0 license, with advice on how to adapt these files for your own game. Materials include:

• Plain text system reference document (SRD)
• PDF versions for layout reference
• Affinity Publisher version for use as template
• Adobe InDesign template of v1.41 courtesyJames Lennox Gordon
• Vector logo usable in 24XX compatible games
• Google Slides version for use as template
• Google Docs version for use as template

24XX games prioritize description and narrative positioning over detailed rules processes, taking the highest die rolled over mental arithmetic, and polyhedral dice over only one shape of die (because funny-shaped things are fun to roll). While 2400 is a sci-fi series, you're welcome to use these rules for whatever setting you like. And if you use any of this material in your own games and hacks, please feel free to link to your games here on the discussion board!

Resources

• TRANSLATIONS(unofficial)
  • Español
  • Français
    
  • Italiana 
  • 日本語
  • 简体中文
  • Suomenkieline
  • Svensk
• SAMPLE GAMES 
  • 2400 free demos include Inner System Blues andEmergency Rules
  • 24XX Jam includes over 60 entires from designers on Itch.io
  • 24XX collection will continue to add games not in the jam
• ARTon this page and in linked files is CC BY BEEPLE (Mike Winkelmann)
  • See instructions to download high-res images from Behance
  •  Mike said it's okay to use his copyrighted art, but note that his CC BY licensed art includes everydays up through November 2016, plus February 2017, and some of his art includes the no-commercial restriction
• FONTS in Affinity Publisher template are legal to download free
  • D-DIN is used in Affinity Publisher template for headings
  • Roboto Condensed is used in Affinity template as body
  • DIN 1451 Std and URW DIN are commercial fonts used in 2400
• DISCUSSION(please note: I do not moderate Discord servers run by others)
  • 24XX forum on Itch.io, run by 2400 creator Jason Tocci
  • 24XX Cord Discord server run by Tibbius 
  • New School Revolution Discord server run by Yochai Gal
  • FKR Collective Discord server for rules-light, rulings-oriented games
• INSPIRATIONS
  • Electric Bastionland
  • The Soft Horizon
  • Ghost/Echo
  • Script Change
• GROUP CHARACTER SHEET available through Google Sheets

Click download now to get access to the following files: