Official docs available

Game.ini generator · Longvinter

Low-poly Multiplayer Island Survival · Multiplayer Survival / Sandbox

Player tools indexed: 5 Admin consoles: 8

23 key slots using the official defaults, with Tag/ServerTag and quoting switchable

Player tools (5)

Instant interactive calculations and recipe planners

The direct-connect address; one UDP game port, with the competing query-port readings side by side

#a single UDP port#the list runs on EOS
Open tool →

Five branches, including the official FAQ four steps and the EOS certificate fix

#the official FAQ four steps#the EOS certificate fix
Open tool →

The list runs on EOS; ServerRegion has five official values versus seven community ones

#five official regions#seven community ones
Open tool →

Server admin and config generation (8)

Config files, startup scripts and command wizards for running a server

Four official readings side by side, plus multi-instance (no official step is given)

#four official readings#no official step
Generate config →

Four launch forms side by side: -GamePort=, no arguments, the AMP -Port= form and the community -Port= form

#four launch forms#none declared effective
Generate config →

FAQ

Which Longvinter server-admin tools are available?
We list 8 tools for Longvinter: Capacity and player budget, Port matrix, Firewall rules, Install script, Startup arguments, Game.ini generator, Admin IDs and region, Ops scripts (from the deprecated repo). All of them run straight in your browser.
Which ports does Longvinter need open?
Longvinter defaults to 7777/UDP, 27016/TCP/UDP, 27015/TCP/UDP. Use the actual instance configuration and allow only the listed protocols and ports. Check the host firewall, router forwarding and game visibility settings.
How do I install a dedicated Longvinter server?
Install it with SteamCMD — the dedicated server app id for Longvinter is 1639880, so +app_update 1639880 validate downloads or updates it. Config files usually live at Longvinter/Saved/Config/LinuxServer/Game.ini, Longvinter/Saved/Config/WindowsServer/Game.ini.
Do these tools cost anything or need installing?
No. Everything runs in the page: no install, no sign-up, no cost. Enter your values and the result appears instantly, and you can copy the generated configs and commands with one click.