Elden Ring Open World / The Lands Between
In Elden Ring players start with a short linear opening but eventually progress to freely explore the Lands Between, including its six main areas, as well as castles, fortresses, and catacombs scattered throughout the open world map. These main areas are explorable using the character's mount as the main mode of transport, although a fast travel system is an available option.
And yes, you may die. But you will return to fight again. For that is how a champion - or a Lord - is born.