Is there a way to make a private server without using Gportal. They charge monthly and about $1.00 per slot/person extra.
All online hosting companies will charge you. If you want to play for free you should make your own dedicated server. The information on how to do that is here: Conan Exiles Dedicated Server Launcher (Official Version: 1.0.44 / Beta: 1.0.45) - Conan Exiles / Servers and Recruitment - Funcom Forums