From their Site
Conan Exiles is online multiplayer survival game set in the lands of Conan the Barbarian
This server requires about 4096m to run properly.
Ports required to run the server in a table format.
| Port | default |
|---|---|
| Game | 7777 |
| Game +1 | 7778 |
| UDP Server query | 27015 |
| RCON | 25575 |
If you want mods download you have to allocated 1 extra port and manualy set Engine.ini.
See: Here