Open serverconfig.xml in the server’s root directory from Files in the panel , edit, save, and start the server. Unknown property names are ignored, and broken XML (a missing quote, for example) can stop the server from starting.

Server and slots

• ServerName, ServerDescription, ServerPassword (blank for public)
• ServerVisibility: 0 unlisted, 1 friends only, 2 public
• ServerMaxPlayerCount: slots, default 8
• ServerPort: default 26900, normally left alone

New world settings

These only apply to a new world, see worlds.

• GameWorld: a map name, or RWG for a random world
• WorldGenSeed and WorldGenSize (4096, 6144, 8192 or 10240). Bigger worlds take longer and use more RAM.
• GameName: the save name

Difficulty and rules

Recent versions moved difficulty, day length, Blood Moon, loot, airdrops and XP into a single SandboxCode value. To make your own:

1. In the game, open the Sandbox Options menu when creating a world.
2. Start from a preset and adjust the options.
3. Copy the generated code into SandboxCode in the file.
4. Save, restart, and check the result in game.

The code is not readable, so keep a note of what you chose. If your server feels easier than expected after an update, check that SandboxCode is set.

PvP and land claims

• PlayerKillingMode: 0 no killing, 1 allies only, 2 strangers only, 3 everyone
• LandClaimCount, LandClaimSize, LandClaimDeadZone
• LandClaimExpiryTime: days offline before a claim expires
• LandClaimOnlineDurabilityModifier and LandClaimOfflineDurabilityModifier: block hardness

Performance

• MaxSpawnedZombies (default 64) and MaxSpawnedAnimals (default 50)
• ServerMaxAllowedViewDistance: capping it at 8 to 10 helps performance
• EACEnabled: Easy Anti-Cheat
• TelnetEnabled, TelnetPort, TelnetPassword: always set a password if you turn telnet on

Related: admin, mods, crossplay.