You can send a message to everyone on your Terraria server from the Players page. This works on Vanilla, TShock and tModLoader. A message to one player needs TShock or tModLoader, because it uses the panel’s own tools inside the game.
A message is 1 to 200 characters on a single line. Use Message everyone to warn players before you restart the server, because a restart disconnects everyone who is on.
Message everyone
- Open the Players page.
- Above the player rows, in On now, press Message everyone (1).
- Write your text in Message.
- Press Send.
- Message everyone
The page says “Sent to everyone on the server.” The server must be running.
On Vanilla and tModLoader the panel sends the game’s say command. On TShock it sends TShock’s bc command. You can also type either one yourself in the Console.
Message one player
- Open the menu on the player’s row under On now.
- Choose Message. The box is titled Message (name).
- Write the text and press Send.
This item shows only when the panel’s tools are running in the game, and only to a role that allows game actions. The tools run on TShock and tModLoader. On Vanilla, the Players page says Vanilla runs none of the panel’s tools, so a message to one player is not possible there. Send one to everyone instead.
The tools need someone on the server. An empty Terraria server pauses, and the panel says “Nobody is on the server, so the world is paused and the game does nothing until someone joins.”
What the panel keeps
A message to one player is recorded in Activity, without its words.
If it does not work
- No Message in the row menu. You are on Vanilla, the tools have not loaded yet, or your role does not allow it. The Players page says which. The tools load at the server’s next start.
- “Write a message.” The box was empty. Add text.
- The Send button stays grey. The text is over 200 characters.
- “The server is not running.” Start it first.
- Many messages in a row. The panel allows 30 player actions and 60 tool actions a minute on one server.
Sources: terraria.wiki.gg: Server