The quarians are first introduced through Tali, who is the only representative of her people to appear in the first
Mass Effect. The quarians are also featured in the backstory of the game's primary antagonistic faction, the geth. During her pilgrimage journey, Tali encounters a geth unit by chance and disables it for study, as the geth rarely venture outside of geth space. When she recovers information from the unit's memory core, she unwittingly discovers a connection between a geth faction and the turian agent Saren Arterius, who answers directly to the Citadel Council. Upon her arrival at the
Citadel, Tali intends to trade the information in return for a safe refuge from a powerful information broker known as the Shadow Broker, but is saved by
Commander Shepard from a rogue agent of the Shadow Broker who attempts to silence her permanently. Quarian culture and society is depicted with greater detail in the tie-in novel
Mass Effect: Ascension, and in the main series sequel
Mass Effect 2. Numerous quarian characters are introduced in
Mass Effect 2, with several playing prominent roles for the remainder of the original trilogy's narrative arc. For example, Shepard first learns of a connection between the abductions of human colonists and a mysterious insectoid race known as the
Collectors from Veetor'Nara, a quarian who resides in a remote human settlement as part of his Pilgrimage journey, who escaped the attention of the Collectors while all the other humans were taken. Tali is once again available for recruitment as a squad member; her backstory and side mission explore the intricacies of the quarian political and legal system, as well as the rise of
irredentism throughout quarian society with regards to the reclamation of their homeworld Rannoch. In
Mass Effect 3, Shepard is tasked with securing an alliance with the quarians to assist in the war effort against the Reapers; in return, the quarian leadership request Shepard's assistance in battling the geth occupation of Rannoch. During the course of the war, Shepard may access a geth server to disable geth fighter squadrons which are assaulting quarian lifeships, where the truth about the origins of the geth rebellion and the ensuing conflict from their perspective may be revealed. At the end of the story arc, players are presented with three possible outcomes to resolve the geth and quarian conflict. Two of these, where Shepard sides with either the geth or the quarians which results in the apparent extinction of the other race, are available to all players regardless of any prior decisions being carried over up to that point in the narrative. The third resolution to this conflict, a peaceful ceasefire between the two sides, requires a specific number of choices to be made by the player in both
Mass Effect 2 and
Mass Effect 3, most of which are made during entirely optional events. Quarians of both genders and various classes are also available as player characters in the multiplayer mode of
Mass Effect 3. The quarians do not appear in
Mass Effect: Andromeda; instead, the story of a contingent of quarian colonists is told in the game's tie-in novel
Annihilation, where they form the majority of the colonists on board the ark ship
Keelah Siyah, which is bound for the
Andromeda Galaxy as part of the Andromeda Initiative.
In other media The quarians are featured as a themed
skin for
Anthem player characters, released on November 7, 2019, in commemoration of "
N7 Day", an informal celebration of the
Mass Effect franchise observed annually. ==Reception and analysis==