Best Terraria Server Hosting 2026
Vanilla Terraria barely needs 2 GB — but the moment you add Calamity and a handful of tModLoader mods, RAM requirements jump fast. Here is what to look for in a Terraria host in 2026.
What to look for in a Terraria host
tModLoader support
The vast majority of Terraria multiplayer groups run mods through tModLoader. A host that has tModLoader pre-installed or makes it easy to switch to the tML dedicated server saves hours of setup.
RAM for heavy mod lists
Vanilla Terraria barely needs 2 GB. But Calamity + Thorium + QoL mods can push past 4 GB. Choose a host that lets you scale RAM independently and start at 4–6 GB if you plan a modded playthrough.
Europe availability
Terraria is a fast-paced action game where projectile lag is noticeable. EU hosting in Helsinki or Frankfurt gives sub-20 ms ping for European players. US servers add 80–120 ms.
World file upload
Many groups want to continue an existing world on a dedicated server. File manager access or SFTP lets you upload a .wld file without losing any progress.
Automated backups
Terraria worlds are saved as a single .wld file. Corruption or accidental deletion loses everything. Daily automated backups with one-click restore protect your world.
RAM by mod load
| Setup | RAM | Notes |
|---|---|---|
| Vanilla | 2–4 GB | Very light, any host works |
| tModLoader + light mods | 4 GB | QoL mods, small content packs |
| Calamity + Thorium | 6–8 GB | Heavy content overhauls |
CoalHost for Terraria
CoalHost runs Terraria and tModLoader servers on AMD EPYC hardware in Helsinki. World file upload, Calamity support, daily backups. Plans from €14/month.
See Terraria hosting plans →FAQ
How much RAM does a Terraria server need?↓
Vanilla Terraria runs comfortably on 2 GB. tModLoader with a light mod list needs 4 GB. Heavy mod lists including Calamity, Thorium and multiple content mods benefit from 6–8 GB.
Does tModLoader work on dedicated Terraria servers?↓
Yes. tModLoader has a dedicated server build that runs on Linux. Install mods server-side and all connecting clients need the same mods. Most managed hosts support tModLoader directly.
How many players can join a Terraria server?↓
Terraria supports up to 255 players per server. In practice most groups run 2–8 players. The game's boss AI and projectile handling get CPU-intensive at very high player counts.
Can I upload my existing Terraria world?↓
Yes. World files (.wld) can be uploaded via SFTP or file manager and pointed to in the server config. Characters are client-side and do not need to be transferred.
Is Calamity mod supported on dedicated servers?↓
Yes. Calamity is a tModLoader mod and works on dedicated servers. It significantly increases RAM usage — allow 6–8 GB with Calamity plus supporting mods.