The host leaves and the friend who takes over has an older version of the world

When a game moves from one host to another without a server, picking just anyone can send everybody back in time. Here is how to choose the person who knows the most and how the others catch up, and what honestly gets lost.

Why this works

Whoever has seen the most can pass it on to the others, but a peer that is behind cannot help one that is ahead. Picking the most up to date player, with a fixed tie rule, lets everyone reach the same answer without any talking.

When not to use it

Wrong where a stable machine is available, such as a rented server that never leaves, or where the host must be trusted, as in a ranked game. Then keep one fixed host and restart it, instead of passing the role around.

In the full entry

• What to build, step by step
• Starting values and the reason for each
• 3 common mistakes and the fix
• A diagram of every state
• 18 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 "The host leaves and the friend who takes over has an older version of the world" (read_entry next-host-takes-over-the-world) 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