Noun
questline (plural questlines)
(video games) A storyline consisting of a number of linked quests.
Not only does it allow the player to become a werewolf, but it’s also one of the few factions in the game with a questline that doesn’t end with the death of the previous leader and the instatement of the Dragonborn as their replacement. Source: Internet
The house players will become most familiar with while leveling is the House of the Chosen, since they are tasked with joining them early on in the Maldraxxus questline. Source: Internet
It's important to check in on this questline while going through the main story. Source: Internet
Without spoiling much, the Dark Brotherhood questline involves a murder mystery that is one of the best assassination missions in any video game. Source: Internet