Sunkenland Dedicated Server: WorldGUID & Launch Args Guide

Data Verified: May 2026

Complete Sunkenland dedicated server reference. Configure WorldGUID, password (8-char max), max players (cap 15), region, ports, and right-size hardware for stable waterworld co-op servers.

Default file locations

Default installation paths for Sunkenland dedicated servers installed via SteamCMD.

Windows

%USERPROFILE%\AppData\LocalLow\Vector3 Studio\Sunkenland\Worlds\

Linux

Wine prefix: ~/.wine/drive_c/users/<user>/AppData/LocalLow/Vector3 Studio/Sunkenland/Worlds/

Pro-Tip: Always stop the server completely before editing configuration files, or the server will overwrite your changes upon restart.

Default ports for port forwarding

Open these on your router and firewall before exposing the server to the internet.

Default ports for Sunkenland
ServiceProtocolPort
Game PortUDP27015
Query Port-N/A (Steam P2P)
RCON / Telnet-N/A

Quick start: launch your Sunkenland server

Copy-paste these two commands to install and start a Sunkenland dedicated server. Tested against SteamCMD on a fresh box.

Step 1, Install via SteamCMDSteam App ID 2667530

steamcmd +@sSteamCmdForcePlatformType windows +force_install_dir /home/steam/sunkenland +login anonymous +app_update 2667530 validate +quit

Step 2, Launch the Sunkenland server

cd /home/steam/sunkenland && wine Sunkenland.exe -batchmode -nographics -WorldGUID=YOUR_WORLD_GUID -Password=changeMe -MaxPlayer=8 -Region=eu -Port=27015

Note: No native Linux binary, Vector3 Studio ships only the Windows build. Run under Wine, or use the community Docker image (melle2/sunkenland-ds) which wraps Wine + SteamCMD.

Step 1, Install via SteamCMDSteam App ID 2667530

steamcmd +force_install_dir "C:\SunkenlandServer" +login anonymous +app_update 2667530 validate +quit

Step 2, Launch the Sunkenland server

"C:\SunkenlandServer\Sunkenland.exe" -batchmode -nographics -WorldGUID=YOUR_WORLD_GUID -Password=changeMe -MaxPlayer=8 -Region=eu -Port=27015

Note: Pre-generate a world in the game client first, then copy its folder name from AppData\LocalLow\Vector3 Studio\Sunkenland\Worlds\ and paste it as -WorldGUID. Password is hard-capped at 8 chars; MaxPlayer is hard-capped at 15.

Starter start-sunkenland.sh

A working baseline config with sensible defaults for Sunkenland. Copy it, tweak the marked values, and drop it into your server directory.

start-sunkenland.shStarter config · Sunkenland
#!/usr/bin/env bash
# Sunkenland has no server.cfg, every option is a launch argument.
# Pre-generate a world in the game client first, then paste its folder
# name (the GUID) from AppData/LocalLow/Vector3 Studio/Sunkenland/Worlds/
# as -WorldGUID below.

WORLD_GUID="paste-your-world-guid-here"
PASSWORD="8charMax"          # hard-capped at 8 characters
MAX_PLAYER=8                 # hard-capped at 15
REGION="eu"                  # eu | na | asia
PORT=27015
SESSION_INVISIBLE="false"    # true = hidden, join via ServerID only

wine Sunkenland.exe \
  -batchmode -nographics \
  -WorldGUID="$WORLD_GUID" \
  -Password="$PASSWORD" \
  -MaxPlayer=$MAX_PLAYER \
  -Region=$REGION \
  -Port=$PORT \
  -SessionInvisible=$SESSION_INVISIBLE

Frequently asked questions

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Host your own Sunkenland server

All hosting guides →

Step-by-step install and deploy walkthroughs (panels, ports, RAM sizing). Pair these with the command reference above.