Terraria

World size and difficulty, uploading an existing world, and how tModLoader differs.

Everything in Your panel applies to Terraria. These are the Terraria-specific parts.

World settings

The world is generated on the first boot from values in Startup parameters:

• World Name — the file the server creates and loads
• World Size — small, medium or large
• Difficulty — classic, expert, master or journey
• Max Players
• MOTD — the message shown when someone joins

Changing size or difficulty afterwards does not alter the existing world. Terraria bakes those in at generation. To apply them you need a new world, which means changing the world name or deleting the current file.

Uploading an existing world

Straightforward: put your .wld file in the server's world folder through the file manager or SFTP, then set World Name in Startup parameters to match the file name.

Stop the server first. Terraria writes the world periodically and will overwrite whatever you upload underneath it.

Keep your local copy until you have seen the world load correctly at least once.

tModLoader

Terraria modding runs on tModLoader, which is a separate server build rather than something you add to the vanilla server. Decide before you generate a world: vanilla and modded worlds are not interchangeable.

Mod files themselves are uploaded through the file manager. As with most games, every player needs the same mods at the same versions, and updating one mod usually means everybody updates.

Memory

Terraria is one of the lighter games we host — plans start at 2 GB, comfortable for a handful of friends on a fresh world.

Go higher for a large world, a bigger group, or a modded setup, since tModLoader packs add up quickly. Worlds played for months also grow steadily as items, chests and NPC housing accumulate.

Upgrading a plan keeps the world intact.

Saving

Terraria saves on a timer and on a clean shutdown. Use Stop rather than Kill when you can — a killed process loses everything since the last autosave.

Take a manual backup before switching to tModLoader or letting a new group onto an established world.