Open the Steam App.
Then click on the View Menu that will be located on the top left
Then choose the Servers Option.
Steam Server browser will then open on your screen.
Open the Favorites Tab.
Select Add a Server option.
You will then need to Enter the IP address of the server.
This should add that particular server to your list.
Choose the server and Connect.
All done! Your Teraria Server is now Linked to your Steam
Updated on: 14 / 05 / 2021