The long-awaited console edition of Bethesda's a monthly subscription. However, it's not a free-to-play game entirely, as you still need to pay a one-time fee to get started.
Bethesda:
Greetings, Vestige. You are about to embark on a continent-spanning journey, one rife with magic and peril, treasures and terrors. You are about to enter a world where you can spend weeks months years of adventure, by yourself or with friends, growing ever more powerful as you range further and further afield from your humble beginnings.