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RPG Builder

RPG Builder

Everything a DM needs to run the table.

Sep 13, 2026 Entertainment & Media
campaign management dnd dungeon master session planning tabletop rpg

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RPG Builder

About

RPG Builder is a toolkit for people running Dungeons & Dragons 5e games, built around one idea: the session you just played should be what builds your campaign, rather than something you write up separately afterwards and then never open again.Three parts that are meant to work as one thing:My Table — run your campaigns from one place. Record a session and the recap writes itself, in the order you actually played.My World — every NPC, place and plot thread out of those recaps, linked and searchable, so nothing gets lost between sessions.Reference and generators — the full SRD 5.1 in-product: 334 monster stat blocks, 319 spells, an encounter difficulty calculator on the same page as the monsters, plus generators for NPCs, taverns, loot and settlements, and character art.Being straight about the AI part, since it matters to a lot of people in this hobby: the session recaps and the character art are generated. The SRD reference, the bestiary and the encounter maths are not — that is the actual SRD 5.1 data under its open licence. Someone who wants nothing generated can use the reference and the campaign tracking and never touch the rest.Built by a small group of people who play D&D — home games, not a studio. The idea was almost embarrassingly simple: whenever we were mid-search for a rule or a stat block, what we actually wanted next was to generate something with it, right there. So we built that, and we still use it at our own table every week.Free tier is a tier and not a trial: PDF, Foundry JSON and print export on every generation including free ones, first session recap free, and the SRD reference is browsable without an account. Paid tiers are $12/mo (Pro) and $39/mo (Ultra).Not for sale — posting here to show it off and find other GMs who might get use out of it.

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