Change the current location, preserve the session memory
When an inn relocates in your fiction, moving its marker can show where it is now; that does not invalidate the party’s earlier visit. Keep a short note of the change and what the characters have learned. The next scene can then offer an understandable surprise.
DMGrid includes a world map with movable markers, places and search, alongside formatted session notes. This is original GM preparation, not an automatic timeline or a new feature.
One inn has two addresses at different times
In this fictional campaign, the Reed Inn stood beside the bridge during session 4. The party left a letter for Ina there. Before session 7 you decide the owner has rented a hilltop house and moved the business.
Write three lines using your own world’s names:
- Before: session 4, Reed Inn by the bridge; letter left for Ina.
- Now: before session 7, business moved to the hill.
- Party knowledge: nobody has told them about the move yet.
These are suggested sentences, not application fields. Relocation does not establish that Ina collected the letter or that the characters saw the new building.
Decide what each marker represents
Use the business marker for its present world-map location. If the old building remains relevant, keep a distinct reference identifying it as “Former Reed Inn premises” rather than leaving two unexplained identical markers. Choose which places you need; this guide requires neither duplicate records nor synchronization between them.
Before play, decide which note to consult if the party returns to the bridge. You might prepare a closed door with the new address on a sign, or a neighbour who knows about the move. These are fictional possibilities: the party can ask something else, walk on or investigate the letter.
Update knowledge when a scene actually happens
If they find the sign, record that they had the opportunity to read the address. If they never approach, do not mark an unplayed detail as known. Keep the session 4 note: it explains why they expected the inn there.
Connect unresolved matters with your campaign open threads. Present location, played history and unanswered question serve different decisions.
DMGrid is a Windows beta for local offline campaigns. Read its current scope and terms before buying; the download requires a licence. The GM prepares the notes and map here. No automatic alerts, NPC relocations or management of party knowledge are promised.