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GuidesGuidesSpin up a free Terraria server — Vanilla, TShock, or tModLoader — and let your world auto-create on first boot.
Terraria multiplayer on Falix is close to a one-button job: pick a flavor, set a couple of variables, press Start, and the server builds your world for you on the first boot. This guide gets you from an empty panel to friends digging next to you in about ten minutes.
| At a glance | |
|---|---|
| You need | A free Falix account |
| Time | About ten minutes |
| Plan | Free — Terraria runs on the free plan |
Go to Servers → Create server, open the Games tab, and choose Terraria. Terraria comes in three flavors, offered as separate software — pick the one that fits:
| Flavor | What it is | Pick it for |
|---|---|---|
| Vanilla | The official server (TerrariaServer, configured by serverconfig.txt) |
Plain, stable, no extras |
| TShock | Vanilla plus admin tools and plugin support; auto-creates a world with -autocreate |
Moderation commands and server plugins |
| tModLoader | The modded server; loads mods from the ~/mods folder |
You and your friends play with mods |
💡 Tip: Not sure which flavor? Start with Vanilla — you can always create another server later.
For a walkthrough of the create page itself, see the Knowledge Base: creating a server.
Open the Settings page and its Environment tab — this is where a server's variables live, and they're editable on every plan. Terraria's Vanilla server gives you three worth setting:
WORLD_NAME — the name of the world file that gets created.MAX_PLAYERS — how many people can be online at once.WORLD_SIZE — how large the generated world is.Set them to whatever you like before the first start, since that's when the world is built. You can leave the defaults, too — the server will still create a playable world.
Press Start and watch the Console page. On this first boot, with no world file present yet, the server generates one using the name and size you set — TShock does this via its -autocreate, and the others create the world for you as well. World generation takes a moment; let it finish. Once it's done, the console settles into the running server, ready for players.
Terraria has no SRV shortcut, so players always need the address and the port. Open the Network page, copy the address and port shown there, and share both.
⚠️ Heads up: Terraria has no SRV shortcut — players always need both the address and the port from the Network page. In Terraria, your friends choose Multiplayer → Join via IP, enter the address, then enter the port when asked. That's the whole join flow.
Your world lives in the server's files and rides through everything you do day to day: restarts, stops, and the free-plan sleep all keep it. The one thing that can wipe it is a reinstall — the Reinstall action on the Settings page's Danger tab re-runs the install (and offers a "delete all files" option), and switching the server to a different game reinstalls it too. Either can take your world with it.
⚠️ Heads up: Before you reinstall or switch games, take a backup — on the free plan, backups save to your own Google Drive. A world file is small; there's no reason to lose one.
Two signals tell you everything's good: the Console shows the world finishing generation and the server listening for players, and when someone joins, the console prints their arrival. If a friend can connect and see your world, you're done.
WORLD_NAME and WORLD_SIZE are set on the Environment tab, then restart.~/mods folder; upload them there with the File Manager, and remember every player needs the same mods to join.