awesome-programmatic-ttrpg

A curated table of open-source projects for building programmable tabletop RPG software.

Star counts and activity badges below are live via Shields.io, so this repo does not need GitHub Actions or any scheduled updater just to keep metadata fresh.

Tier	Repo	Category	Why it matters	Stars	Activity
Core	Azgaar/Fantasy-Map-Generator	Procedural generation	Heavyweight fantasy map and world generator with deep customization and a real codebase to study.
Core	RPTools/maptool	VTT engine	Long-running open virtual tabletop with macro automation and a serious installed base.
Core	ryceg/Eigengrau-s-Essential-Establishment-Generator	Procedural generation	Play-ready town and establishment generator that feels genuinely useful at the table.
Core	BigJk/snd	Session tooling	A delightfully weird D&D and TTRPG utility built around thermal printing.
Core	5e-bits/5e-srd-api	Rules API	One of the clearest code-first 5e SRD APIs for builders of apps, bots, and VTT integrations.
Core	foundryvtt/pf2e	Foundry system	One of the strongest open TTRPG system implementations on GitHub.
Core	vassalengine/vassal	Tabletop engine	Broader than TTRPGs, but important if you care about open tabletop engine architecture.
Core	Kruptein/PlanarAlly	VTT platform	Self-hosted battlemap and VTT platform with enough depth to matter.
Core	foundryvtt/dnd5e	Foundry system	Official open 5e system implementation for Foundry and a great reference for system authors.
Core	PCGen/pcgen	Character tooling	Long-running character generation and play-assist project with historical weight.
Core	open5e/open5e	Rules data	Open 5e reference site and content hub worth knowing even if you use the API separately.
Core	Roll20/roll20-api-scripts	Automation	Canonical Roll20 script collection maintained by the ecosystem.
Core	foundryvtt/foundryvtt	Platform docs	Public issue tracker and documentation surface for Foundry itself.
Core	ebullient/ttrpg-convert-cli	Authoring pipeline	Converts owned structured rules data into Obsidian-friendly Markdown.
Core	farirpgs/fari-app	VTT platform	Free and open-source VTT with a lighter web-first feel than older engines.
Core	foundry-vtt-community/macros	Foundry ecosystem	Community macro pack that doubles as a cookbook for Foundry automation.
Core	carlonicora/obsidian-rpg-manager	Campaign tooling	Campaign management plugin for people treating Obsidian like an RPG ops system.
Core	rsek/dataforged	Rules data	Machine-friendly Ironsworn and Starforged rules data with schemas and a JS API.
Core	fvtt-fria-ligan/forbidden-lands-foundry-vtt	Foundry system	Strong example of a full game system implementation for Foundry.
Core	open5e/open5e-api	Rules API	API backing Open5e and a useful second major source of open 5e content.
Core	Obsidian-TTRPG-Community/initiative-tracker	Campaign tooling	Initiative tracker for Obsidian-driven campaigns.
Core	Billiam/awesome-ironsworn	Resource list	Great adjacent ecosystem list and a good source of more project discovery.
Core	League-of-Foundry-Developers/FoundryVTT-Module-Template	Dev template	Good starting point for shipping Foundry modules with CI and release structure.
Core	samcf/ogres	VTT platform	Small, browser-based VTT that feels like a good codebase to actually fork.
Core	rsek/datasworn	Rules data	Successor to Dataforged and part of the cleaner machine-readable Ironsworn ecosystem.
Core	League-of-Foundry-Developers/foundry-vtt-types	Dev library	TypeScript declarations for Foundry. Essential if you want typed module work.
Deep Cut	mythal/boluo	Social play	Chat application designed specifically for playing RPGs.
Deep Cut	DSPaul/COMPASS	Resource management	TTRPG resource manager for books, maps, and campaign assets.
Deep Cut	bryancasler/Bryans-Preferred-Modules-for-FoundryVTT	Resource list	User-facing curation, but useful for ecosystem discovery and compatibility clues.
Deep Cut	halftheopposite/bsp-dungeon-generator	Procedural generation	Nice compact BSP dungeon generator worth studying for algorithmic generation.
Deep Cut	foundryvtt-starfinder/foundryvtt-starfinder	Foundry system	Community Starfinder implementation for Foundry.
Deep Cut	iron-vault-plugin/iron-vault	Campaign tooling	Obsidian plugin for Ironsworn and Starforged play.
Deep Cut	oakbrad/dungeonchurch	Group infrastructure	D&D group infrastructure repo, interesting as a practical campaign ops example.
Deep Cut	openrpg/OpenRpg	Core models	Reusable RPG-related data models and logic.
Deep Cut	shdwjk/Roll20API	Automation	Production-ready Roll20 API scripts from a prolific maintainer.
Deep Cut	5e-bits/awesome-5e-srd	Resource list	Existing awesome list for projects built on top of the 5e SRD API.
Deep Cut	kgar/foundry-vtt-tidy-5e-sheets	Foundry UI	Strong example of Foundry sheet UX work.
Deep Cut	vigoren/foundryvtt-simple-calendar	Foundry module	Calendar and timekeeping module with clear game-ops value.
Deep Cut	fantasycalendar/FoundryVTT-Sequencer	Foundry dev library	Effect sequencing pipeline used by other modules and automations.
Deep Cut	McAJBen/DungeonBoard	Map tooling	Spoiler-safe map viewer for DMs.
Deep Cut	qennenat/WFRP-4th-Edition-FoundryVTT	Foundry system	Warhammer Fantasy Roleplay system for Foundry.
Deep Cut	foundry-vtt-community/tables	Foundry ecosystem	Community roll tables and content pack for Foundry.
Deep Cut	dev7355608/perfect-vision	Foundry rendering	Technically interesting lighting and vision extension for Foundry.
Deep Cut	JohanFalt/Foundry_WoD20	Foundry system	World of Darkness 20th edition for Foundry.
Deep Cut	ianfhunter/GNOLL	Dice library	Multi-language dice notation parser for software that needs real dice grammar support.
Deep Cut	circumspect/White-Rabbit	Discord bot	Bot for running Alice is Missing on Discord.
Deep Cut	ebshimizu/5e-monster-maker	Authoring tool	Monster stat block builder for 5e homebrew workflows.
Deep Cut	pwatson100/alienrpg	Foundry system	Alien RPG system implementation for Foundry.
Deep Cut	ghost-fvtt/foundry-factory	Dev tooling	CLI bootstrapper for new Foundry modules and systems.
Deep Cut	ruipin/fvtt-lib-wrapper	Dev library	Library for safely patching and wrapping core Foundry behavior.
Deep Cut	apocabot/ApocaBot	Discord bot	Bot for Powered by the Apocalypse games.
Deep Cut	farirpgs/fari-games	Rules data	Open-content rules collection for multiple TTRPG systems.
Deep Cut	scottbenton/Iron-Fellowship_and_Crew-Link	Shared play tooling	Character sheets and campaign managers for Ironsworn and Starforged with online integration.
Deep Cut	Ethaks/FVTT-Quench	Testing	End-to-end UI testing inside Foundry for module and system authors.
Deep Cut	brouberol/5esheets	Character tooling	Browser-based 5e character sheet tooling.
Deep Cut	Xacus/demonlord	Foundry system	Shadow of the Demon Lord system for Foundry.
Deep Cut	EepyBerry/lagrange	Procedural generation	Procedural planet builder that could inspire sci-fi campaign tooling.
Deep Cut	schemen/monsterforge	Maker tooling	Paper miniature creator.
Deep Cut	wanderers-guide/wanderers-guide	Character tooling	Pathfinder and Starfinder character builder and digital toolbox.
Deep Cut	fultimator/fultimator	Authoring tool	Homebrew adversary, character, and item creator for Fabula Ultima.
Deep Cut	GoOz/wfrp-sheet	Character tooling	Online character sheet for Warhammer Fantasy Role Play.
Deep Cut	curtmorgan3/quest-bound	Tabletop engine	Small but clearly aligned open tabletop game engine.
Deep Cut	Mimic-Tools/name-generation	Procedural generation	Fantasy character name generation tooling.
Deep Cut	fjallnari/morii-vtt	VTT platform	Web-based half-VTT supporting multiple systems.
Deep Cut	rpg-sage-creative/rpg-sage	Discord bot	Play-by-post Discord bot for TTRPG campaigns.

Pull requests are welcome if a repo is public on GitHub, clearly useful to developers building TTRPG software, and substantial enough to be more than a throwaway demo.