Mass Effect is a military science fiction media franchise created by Casey Hudson, Drew Karpyshyn and Preston Watamaniuk. The franchise depicts a distant future where humanity and several alien civilizations have colonized the known universe using technology left behind by advanced precursor civilizations.

Quick facts: Mass Effect, Genre(s), Developer(s), Publishe...
Mass Effect
Logo since 2017
Genre(s)
Developer(s)
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First releaseMass Effect
November 20, 2007
Latest releaseMass Effect Legendary Edition
May 14, 2021
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The franchise originated in a series of video games developed by BioWare and published by Electronic Arts. Each installment is a third-person shooter with role-playing elements. The first three games form a trilogy in which the player character, Commander Shepard, attempts to save the Milky Way galaxy from a race of ancient, hibernating machines known as the Reapers. The inaugural video game in the series, Mass Effect (2007), follows Shepard's investigation of Saren Arterius, one of the Reapers' agents. Mass Effect 2 (2010) begins two years later and sees Shepard's forces battling the Collectors, an alien race abducting human colonies to facilitate the Reapers' return. The original trilogy's final installment, Mass Effect 3 (2012), depicts a war between the Reapers and the rest of the galaxy. A fourth game, Mass Effect: Andromeda (2017), featured a new setting and cast of characters, and a fifth is in active development.

The original trilogy was met with commercial success as well as universal acclaim. Critics praised the game's narrative, characters, voice acting, world building, and emphasis on player choice. The ending of Mass Effect 3 drew widespread criticism for being an unsatisfying conclusion to the trilogy, prompting Electronic Arts to release an expanded cut with additional cutscenes. Mass Effect: Andromeda received mixed reviews. Praise was directed at the game's visuals and combat, but the game drew criticism for technical issues and its plot.

The series has generated attention and discussion about its representation of same-sex relationships and sexual minorities. It also originated the dialogue wheel, a mechanic similar to dialogue trees, enabling players to dynamically steer conversations by selecting from a number of preset choices; the feature has seen widespread use in other role-playing video games. The success of the video game series spawned adaptations in other media, including novels, comics, and an animated film.