Remember the iconic nightclub scene from Blade? You know, the one with all the cool vampires dancing around and looking awesome? In DARK, the Sanctuary is that kind of place – a hangout for vampires and their “friends”.
In the game, Eric wakes up in the Sanctuary, and meets Rose, who helps him learn more about what it means to be a vampire, and offers him various missions. The Sanctuary acts as a “hub” for most of the game, a place to gather intel, grab a drink, and pick up a new mission.