Primordial Tyrants: Psittacosaurus

In Path of Titans, open the Mods page, select the mod, and copy the Mod ID (it looks like UGC_M_...).

For this mod: UGC_M_DYVEXP60GX_SK (use the Copy button on the right).

1. Log in to your server panel and STOP the server.
2. Navigate to the config directory, usually: /PathOfTitans/Saved/Config/LinuxServer
3. Open GameUserSettings.ini and find or create the header:

[PathOfTitans.Mods]
EnabledMods=UGC_M_DYVEXP60GX_SK
#Primordial Tyrants: Psittacosaurus

Add a new EnabledMods=ModID line for each mod you want enabled. The # line is an optional comment - useful for keeping the file readable when you have many mods.

Save the file and restart your server. The mod downloads on startup.

If the mod is a custom map, you also need to set the map name in Game.ini:

1. Get the map file name from the mod author or the mod files (look for a .umap).
2. Open Game.ini and add under the [/Script/PathOfTitans.IGameSession] header:

[/Script/PathOfTitans.IGameSession]
ServerMap=MapFileName

Save the file and start your server.