The quest to unlock your Diablo 4 mount isn't available right at the beginning of the story. In fact, you'll need to work your way through to the end of Act 3 of the main campaign to access it. Even if you've unlocked the mount trophy during the server slam weekend, you can only equip it on your trusty steed once you've unlocked your first mount.
The world of Sanctuary is large, but you'll have to spend the first 30 levels running around on foot. At least you won't be tempted to dash past enemies that can give you valuable XP, and you can fast travel around the world using waypoints when running is just too strenuous. That said, if you want to learn exactly when you can expect to unlock the Diablo 4 mount quest, here's what you need to know.
