The usual way to link up in Chained Together on Roblox is to join the same lobby, then start the run so the chain connects the players automatically. In this game, you can also play with a friend or get matched with a stranger, and the chain is part of the co-op setup itself.

How to do it

  1. Open Chained Together in Roblox.
  2. Join the same server or lobby as the other player.
  3. Start the game from the lobby.
  4. Once the session begins, the game links both players with the chain automatically.

If you mean scripting it

If you mean how to make two Roblox characters linked together in your own game, dev forum advice suggests using a weld or a visible chain/rope model between the players, then enforcing distance limits on the server so the link behaves consistently.

Simple takeaway

  • In the actual game, linking is automatic when two players start together.
  • In a Roblox script, you’d usually weld the players or attach a chain/rope effect and manage movement server-side.

The game is basically built around that chained co-op mechanic, so there usually isn’t a separate “link” button to press in normal play.