A collection of lore and early design documents for a Fallout 3 project (Van Buren) that includes early pen-and-paper testing notes, often hosted as a PDF on sites like GOG. Fallout: The Roleplaying Game Downloads
Official rulebook updates and errata are available for download. Miniature & Skirmish Game Resources download-fallout-the-games-download-zip
You can download standard and printer-friendly character sheets for humans and robots, as well as pregenerated characters, from the Modiphius Fallout Downloads page . A collection of lore and early design documents
Free downloads for unit costs, AI mode rules, and the RPG expansion character sheet are available at Modiphius Wasteland Warfare Downloads . as well as pregenerated characters
If you are looking for materials related to the tactical miniatures games: