GM tools in a campaign
Build NPCs & adversaries (with AI), run a live battle map, keep a journal with secret GM notes, log XP, and draft AI recaps & session prep.
GMs & playersUpdated July 15, 2026
A campaign bundles the tools you need to run it, alongside the story. Some are GM‑only; others open up to players via settings. For the standalone versions (a 3D dice roller, initiative tracker, and more), see the Forge's GM tools.
NPCs & adversaries
- Build villains, allies, and NPCs with a name, kind, challenge, freeform stat block, and notes — works across any system.
- ✨ Generate for this game spins up a setting‑appropriate NPC (age, race, appearance, personality, and items) tuned to your system. Generating uses your own AI credits.
- Any member can add NPCs when Players can add NPCs is on; the author and GMs can edit or remove them.
Battle map
- A persistent shared grid — admins paint terrain and place, move, resize, and rename tokens (PC, NPC, villain, object). Everyone at the table sees it update live.
- Tokens that match a party character or adversary by name show that avatar and their live HP, pulled straight from the linked sheet.
- On AI tables, the AI Game Master moves and updates the map itself as the scene plays out.
Journal & secret GM notes
- Shared notes — a running log the party can read (players can add when allowed).
- GM‑only notes — secret notes only GMs see, for plot you're not ready to reveal.
XP
The GM logs experience and milestones — party‑wide or for a single member — so leveling stays on the record.
AI recap & session prep
Whether your GM is human or AI, GMs can draft with AI and review before anything is saved:
- Draft recap — a “Previously on…” summary from the chat transcript, saved to the shared journal.
- Draft session prep — hooks, NPCs, and possible encounters, saved as a GM‑only note.
Human-in-the-loop + credits
AI drafts are never posted automatically — you review and save them. Recap/prep drafts spend the GM'sAI credits (the NPC generator spends the acting member's own).
Bestiary lookups
For supported systems the hub links straight to the bestiary, and the AI GM grounds its creatures in the same stat blocks.
Still stuck? Browse all help or report a problem from the relevant profile or session.