No trial?

No?

You can create an account and play for free on the Finvarra's Fortress server, more information here:
https://realmserver.com/game_information/account_types

Just head on over to this part of the website:
https://realmserver.com/restricted/realm_accounts

Click Create New Account, choose your login name/password, then download the new launcher here:
https://realmserver.com/files/TheRealmOnline.msi

Launch the Finvarra's Fortress Server and use the login credentials you created to sign in.

Welcome back!