Let a guest visit a friend's world without losing or skipping their own story

A friend joins your world at a late chapter. Afterwards they should keep what they earned, not suddenly stand at your chapter, and still remember what they witnessed. Here is how to sort the story facts into the ones that travel and the ones that stay.

Why this works

Some facts belong to the place and some belong to the person. Deciding that once for every fact lets a guest take part fully while the host's world stays the host's, and the guest's own journey stays untouched by what they merely witnessed.

When not to use it

Skip it when the whole group plays one shared save from the start, or when the game has no personal progress to protect. Then a single record for everyone is simpler and nothing needs sorting.

In the full entry

• What to build, step by step
• Starting values and the reason for each
• 4 common mistakes and the fix
• A diagram of every state
• 33 lines of example code with 4 checks that pass
• How your AI shows you that it works

Say this to your AI

Use the Spielerando entry "Let a guest visit a friend's world without losing or skipping their own story" (read_entry online-guest-in-a-host-world-keeps-own-story) in my game. Build it step by step, and show me how you checked that it works.

Or skip this and connect the MCP: your AI then finds all of this by itself.Connect the MCP