A downloadable game

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24XX is the free version of the rules used by the 2400 series of RPGs, released under a Creative Commons Attribution 4.0 license. Downloads include:

  • Plain text system reference document (SRD)
  • PDF versions for layout reference
  • Affinity Publisher version for use as template
  • Vector logo usable in 24XX compatible games

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!

Art on this page and in linked files is CC BY BEEPLE (Mike Winkelmann). 24XX rules inspired by Electric BastionlandThe Soft Horizon, and Script Change.

Published 15 days ago
CategoryPhysical game
AuthorJason Tocci
GenreRole Playing
Tagsfkr, osr, Resource Pack, rules-lite, Sci-fi, srd


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Click download now to get access to the following files:

24XX SRD v1.0 singles.pdf 1 MB
24XX SRD v1.0 spreads.pdf 1 MB
24XX SRD v1.0 b&w.pdf 348 kB
24XX SRD.txt 10 kB
24XX SRD.afpub 22 MB
24XX_logo.eps 9 kB