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— CH. 1 · A GALAXY BUILT FROM A PITCH —

Mass Effect

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  • Mass Effect began not with a game but with a pitch. In 2003, BioWare project director Casey Hudson presented an idea codenamed SFX to company co-founders Ray Muzyka and Greg Zeschuk. Hudson wanted BioWare to build a science fiction universe on the scale of Star Wars, something the studio would own entirely. That ambition produced a franchise spanning games, novels, comics, films, action figures, board games, and a television deal still in production as of 2025.

    The original Xbox 360 game launched in November 2007, just days after EA announced it had acquired VG Holding Corp., a partnership between BioWare and Pandemic Studios formed in November 2005. The Mass Effect intellectual property passed to EA in that transaction, though BioWare kept its role as developer. The franchise's trajectory would be shaped by that corporate handover for years to come.

    By the time Mass Effect 3 arrived in March 2012, the series had sold a combined total of seven million copies worldwide across the first two installments. The third game alone brought in over $200 million in revenue during its opening period, selling over 800,000 copies in its first 24 hours. By the 5th of July 2014, the entire series had moved 14 million units. Those numbers placed Mass Effect among the most commercially successful franchises in the history of the medium, though the story of how it got there is more complicated than any sales figure suggests.

  • BioWare filed a patent in 2007 for what internal documents described as a "graphical interface for interactive dialog." The United States Patent & Trademark Office officially granted that patent to EA International Studio and Publishing Ltd in 2011. The device it protected, the Dialogue Wheel, became one of the most widely imitated mechanics in role-playing games.

    The wheel presented reply options extending radially outward from a circle at the bottom of the screen. Most choices were questions or responses, but some dialogues offered options that steered the story in substantively different directions. In the first three games, those choices tracked the player along a spectrum between Paragon and Renegade, indicated by color and positioning on the wheel itself. Cinematic designer John Ebenger stated in 2020 that only about 8% of players chose the Renegade route across the first three games, a figure he described with some regret given the production effort invested in Renegade cinematics.

    The second and third games introduced interrupt mechanics, letting players select dialogue options mid-conversation rather than waiting for an NPC to finish speaking. Those choices could carry consequences larger than any planned dialogue branch. For Mass Effect: Andromeda, BioWare abandoned the binary Paragon and Renegade labels entirely, replacing them with four attitude modes: emotional, logical, casual, and professional. The Dialogue Wheel concept itself, stripped of its morality axis, had by then spread widely across the role-playing genre.

  • Jack Wall, who composed the first two Mass Effect games, drew deliberately from the electronic instrument palette of the late 1970s and early 1980s to create the franchise's signature soundscape. His reference point was the synthesizer score for Blade Runner. That sonic atmosphere, layered with organic elements, matched what Hudson described as a setting built on real scientific speculation.

    The technological logic of the Mass Effect universe rests on dark energy, a form of energy proposed as the source of the universe's expansion. Applying an electric current via dark energy to a fictional substance called Element Zero, or "eezo", generates mass effect fields. A positive current raises the mass of objects in a given area; a negative current reduces mass, lowering fuel costs for faster-than-light travel. The stronger the current, the larger the effect. This framework also explains biotics, the in-universe equivalent of powers similar to those found in other science fiction franchises.

    Hudson cited the principle that real-world scientific discoveries consistently generate imagery that outpaces earlier assumptions about what is possible. That view justified the creative liberties the developers took. Other real-world concepts woven into the design include three-dimensional printing for the omni-tool, hard light technology, and hypervelocity weaponry. Subsequent games shifted toward a more orchestral scoring style, with composers including Clint Mansell contributing, though certain sonic elements from Wall's original work remained consistent across the series.

  • Mass Effect (2007) launched as an Xbox 360 exclusive before Demiurge Studios ported it to Windows in 2008 and Edge of Reality brought it to PlayStation 3 in 2012. The game's central conflict follows Commander Shepard's pursuit of rogue Spectre Saren Arterius, who has been mentally enslaved by the Reaper vanguard Sovereign. Two downloadable content packs, Bring Down The Sky and Pinnacle Station, followed in 2008 and 2009.

  • Mass Effect: Andromeda was revealed at E3 2015 and released on the 21st of March 2017. Built on DICE's Frostbite 3 engine, it was the first title in the series to feature an open world environment. Set during the 29th century, the game sent players to the Heleus Cluster of the Andromeda galaxy, 634 years after the events of the original trilogy. Analyst estimates placed retail shipments at a minimum of 2.5 million copies by May 2017, generating $110 million in revenue, with an additional $53 million in net sales from digital and special editions recorded in March 2017.

    Critical reception was mixed. The game's visuals and combat received praise, but technical problems and the plot drew sustained criticism. Unlike earlier installments, Andromeda received no single-player expansion content; multiplayer received updates through 2017.

    As part of the 2020 N7 Day celebration on November 7, BioWare confirmed a new Mass Effect was in active development. An announcement trailer released on the 11th of December 2020 hinted at a sequel to the original trilogy and featured original trilogy character Liara T'Soni. In November 2022, BioWare announced several lead developers working on the new game, including veterans of the original trilogy. In November 2023, a short teaser trailer and poster depicting a new character were revealed following an online alternate reality game for N7 Day. Project Director Mike Gamble confirmed via Twitter that veteran developers including art directors and level designers had returned. The new game would run on Epic Games' Unreal Engine rather than EA's Frostbite engine, which had been used for Andromeda.

  • Del Rey Books published four novels tied to the original trilogy, all written by Drew Karpyshyn except for the fourth, Mass Effect: Deception (2012), which was authored by William C. Dietz. Deception drew strong negative reaction for inconsistencies with established lore, leading fans to petition BioWare to remove it from canon. BioWare and Del Rey announced that changes would be made in future editions. Titan Books published three novels tied to Mass Effect: Andromeda, with authors including N. K. Jemisin and Catherynne M. Valente.

    Dark Horse Comics published a substantial body of comics across the franchise's lifespan. The 13-issue series Mass Effect: Foundation, written by game lead writer Mac Walters, launched its first issue on the 24th of July 2013. The animated film Mass Effect: Paragon Lost was released on the 28th of December 2012, produced by Funimation Entertainment and Japanese studio T.O Entertainment following an announcement on the 7th of April 2011.

    A live-action television adaptation was reported in negotiation with Amazon Prime Video on the 23rd of November 2021. Amazon officially announced the series was in development in November 2024, with Karim Zreik, Ari Arad, and Michael Gamble attached as producers and Daniel Casey slated to write. On the 6th of June 2025, Doug Jung was hired as showrunner. In November 2025, the series was confirmed to tell a new story set after the events of the original trilogy, rather than adapting the games directly. N7 Day, observed annually on November 7, began as a BioWare marketing initiative in 2012. The designation itself refers to Commander Shepard's in-universe military code: N for special forces, 7 for Shepard's rank.

Common questions

Who created Mass Effect and when did the first game come out?

Mass Effect was created by Casey Hudson, a project director at BioWare, who first pitched the idea as a project codenamed SFX in 2003. The first game in the series launched in November 2007 as an Xbox 360 exclusive before being ported to other platforms.

How many copies has the Mass Effect franchise sold?

The Mass Effect series had sold a total of 14 million units by the 5th of July 2014. Mass Effect 3 alone sold over 800,000 copies in its first 24 hours and brought in over $200 million in revenue during its launch period.

What is the Mass Effect Dialogue Wheel and who owns the patent?

The Dialogue Wheel is a graphical interface for interactive dialog developed by BioWare, presenting conversation choices as options extending radially from a circle on screen. BioWare filed a patent for it in 2007, and the United States Patent & Trademark Office granted the patent to EA International Studio and Publishing Ltd in 2011.

Why was the ending of Mass Effect 3 controversial?

The ending of Mass Effect 3 drew widespread criticism from players who organized internet campaigns demanding a revised conclusion. Complaints were filed with both the US Federal Trade Commission and the British Advertising Standards Authority alleging that BioWare had misled consumers. BioWare responded by releasing an extended cut patch that expanded upon but did not replace the original endings.

Is there a Mass Effect TV series in development?

Yes. Amazon officially announced a Mass Effect television series in November 2024, with Karim Zreik, Ari Arad, and Michael Gamble producing, and Daniel Casey writing. Doug Jung was hired as showrunner on the 6th of June 2025. In November 2025, the series was confirmed to explore a new story set after the original trilogy.

What percentage of Mass Effect players chose the Renegade morality path?

Cinematic designer John Ebenger stated in 2020 that only about 8% of players chose the Renegade route across the first three Mass Effect games. Ebenger noted with some humor the amount of effort the team had invested in Renegade cinematics given that figure.

All sources

193 references cited across the entry

  1. 1Mass Effect 2 Censored Jack's SexualityRory Young — 2021-01-22
  2. 59 out of 10 people played Mass Effect as ParagonBrett Makedonski — February 21, 2020
  3. 8Mass Effect 2 Release Date AnnouncedJim Reilly — October 16, 2009
  4. 9NewsAfterwards: Mass EffectGI Staff — March 2008
  5. 10BioWare Suggests Hanging on to Mass Effect SavesErik Brudvig — IGN — February 23, 2009
  6. 11Mass Effect 3 Thrusts Its Way into Early 2012Mike Fahey — Kotaku — March 4, 2011
  7. 16New Titanfall game and Mass Effect: Andromeda coming in the next 14 monthsJeffrey Matulef — Eurogamer — January 28, 2016
  8. 18The new Mass Effect: everything BioWare has said and teasedPatricia Hernandez — Polygon — December 11, 2020
  9. 19Next Mass Effect to use Unreal EngineWindows Central — 2021-12-17
  10. 20N7 Day 2022November 7, 2022
  11. 21N7 Day 2023November 7, 2023
  12. 22From our crew to yours,...BioWare — November 7, 2023
  13. 26Mass Effect Trilogy comes to PS3 Dec. 4Eddie Makuch — November 2, 2012
  14. 27Ryan Warden: An Update on the Mass Effect TrilogyRyan Warden — November 1, 2012
  15. 31Happy N7 Day!Casey Hudson VP et al. — 2020-11-07
  16. 32Mass: Effect Legendary Edition May Release Date AnnouncedJonathon Dornbush — February 2, 2021
  17. 43Announcing Mass Effect: AnnihilationConal Pierse — October 25, 2017
  18. 44Mass Effect Comes to ComicsJesse Schedeen — IGN — July 21, 2009
  19. 45Mass Effect Explodes Into Comics!Dark Horse Comics — July 21, 2009
  20. 46Mass Effect: InvasionIGN — January 2010
  21. 47Mass Effect: Redemption #1Dark Horse Comics — January 6, 2010
  22. 48Mass Effect: Redemption #2Dark Horse Comics — February 3, 2010
  23. 49Mass Effect: Redemption #3Dark Horse Comics — March 3, 2010
  24. 50Mass Effect: Redemption #4Dark Horse Comics — April 7, 2010
  25. 51Mass Effect: Redemption #1Dark Horse Comics — April 20, 2011
  26. 52Mass Effect: Redemption #2Dark Horse Comics — April 20, 2011
  27. 53Mass Effect: Redemption #3Dark Horse Comics — April 20, 2011
  28. 54Mass Effect: Redemption #4Dark Horse Comics — April 20, 2011
  29. 55Exclusive Mass Effect Short StoryRichard George — Dark Horse Comics via IGN — June 21, 2010
  30. 56Mass Effect: Incursion – Page 1Dark Horse Comics via IGN — June 21, 2010
  31. 57Mass Effect: Incursion – Page 2Dark Horse Comics via IGN — June 21, 2010
  32. 58Mass Effect: Incursion – Page 3Dark Horse Comics via IGN — June 21, 2010
  33. 59Mass Effect: Incursion – Page 4Dark Horse Comics via IGN — June 21, 2010
  34. 60Mass Effect: Incursion – Page 5Dark Horse Comics via IGN — June 21, 2010
  35. 61Mass Effect: Incursion – Page 6Dark Horse Comics via IGN — June 21, 2010
  36. 62Mass Effect: Incursion – Page 7Dark Horse Comics via IGN — June 21, 2010
  37. 63Mass Effect: Incursion – Page 8Dark Horse Comics via IGN — June 21, 2010
  38. 64'Mass Effect: Inquisition' is ready to blast offTory Hargro — October 24, 2010
  39. 65SDCC 10: Mass Effect: The Origin of the Illusive ManRichard George — IGN — July 15, 2010
  40. 66Review – Mass Effect: ConvictionR. B. LeMoyne — October 9, 2011
  41. 68Mass Effect: InvasionIGN — October 2011
  42. 69Mass Effect: Invasion #1 (Massimo Carnevale cover)Dark Horse Comics — October 19, 2011
  43. 71Mass Effect: Invasion #2 (Massimo Carnevale cover)Dark Horse Comics — November 16, 2011
  44. 72Mass Effect: Invasion #2 (Paul Renaud variant cover)Dark Horse Comics — November 16, 2011
  45. 73Mass Effect: Invasion #3 (Massimo Carnevale cover)Dark Horse Comics — December 21, 2011
  46. 74Mass Effect: Invasion #3 (Paul Renaud Variant cover)Dark Horse Comics — December 21, 2011
  47. 75Mass Effect: Invasion #4 (Massimo Carnevale regular cover)Dark Horse Comics — January 18, 2012
  48. 76Mass Effect: Invasion #4 (Paul Renaud variant cover)Dark Horse Comics — January 18, 2012
  49. 78Mass Effect: HomeworldsIGN — April 2012
  50. 79Mass Effect: Homeworlds #1 (Anthony Palumbo cover)Dark Horse Comics — April 25, 2012
  51. 80Mass Effect: Homeworlds #1 (Mike Hawthorne Variant cover)Dark Horse Comics — April 25, 2012
  52. 81Mass Effect: Homeworlds #2 (Anthony Palumbo cover)Dark Horse Comics — May 30, 2012
  53. 83Mass Effect: Homeworlds #3 (Anthony Palumbo cover)Dark Horse Comics — July 25, 2012
  54. 85Mass Effect: Homeworlds #4 (Anthony Palumbo cover)Dark Horse Comics — August 29, 2012
  55. 86Mass Effect: Homeworlds #4 (Mike Hawthorne variant cover)Dark Horse Comics — August 29, 2012
  56. 89Mass Effect's Blasto Gets His Own ComicAjané Celestin-Greer — Gameranx — December 10, 2012
  57. 91Mass Effect: Foundation Expands Shepard's UniverseBrett Slabaugh — The Escapist — March 3, 2013
  58. 93Mass Effect: DiscoveryJeremy Barlow — Dark Horse Comics — May 24, 2017
  59. 94Funimation. T.O to Make Anime Movie of Mass Effect GamesAnime News Network — April 7, 2011
  60. 97Comic Con Q&A Mass EffectLegendary Pictures — Legendary Pictures
  61. 98Legendary arms 'Mass Effect' with new scribeJustin Kroll and Marc Graser — Variety — October 24, 2012
  62. 101Mass Effect TV Series in the Works at Amazon From 'Fast & Furious 9' Writer (Exclusive)Joe Otterson — Penske Media Corporation — November 7, 2024
  63. 102'Mass Effect': Doug Jung Joins Amazon's Series Adaptation Of Video Game As ShowrunnerNellie Andreeva — Penske Media Corporation — June 6, 2025
  64. 103N7 DAY 2025November 7, 2025
  65. 106Mass Effect Risk Coming This YearAndrew Goldfarb — IGN — February 12, 2013
  66. 108Mass Effect board game available to pre-order, with £240 miniatures bundleTom Phillips — Gamer Network — August 30, 2024
  67. 111A look at the Mass Effects that almost wereBrian Crecente — March 15, 2012
  68. 112EA Acquires BioWare, PandemicPatrick Klepek — 11 October 2007
  69. 114Exploring the Galaxy with Mass Effect 3Sara Mitchell — July 31, 2012
  70. 118The 11 Sci-Fi Influences That Made Mass EffectJoe Skrebels — IGN — May 3, 2017
  71. 121MagazineUnlimited Enabled: Mass EffectGameStop — March 2008
  72. 122Mass Effect is Inspired by...Final Fantasy?Luke Plunkett — June 28, 2011
  73. 123How Mythology and Pop Culture Influenced Mass EffectAndrás Neltz — Kotaku — February 25, 2015
  74. 124Jack Wall Feels The Mass Effect (Page 3)Spence D. — November 19, 2007
  75. 125Mass Effect ReviewsMetacritic
  76. 126Mass Effect ReviewsMetacritic
  77. 127Mass Effect ReviewsMetacritic
  78. 139The Top 25 Xbox 360 GamesSeptember 20, 2013
  79. 140The Top 25 PS3 GamesSeptember 4, 2013
  80. 143Mass Effect Amasses One Million Copies SoldJames Brightman — December 10, 2007
  81. 144Xbox 360 Sells 17.7 Million, Halo 3 Reaches 8.1 MillionJames Brightman — January 3, 2008
  82. 145NewsAuthor Faults a Game, and Gamers Flame BackSeth Schiesel — January 26, 2008
  83. 146MagazineMass Effect 2 sales top 2mBen Parfitt — January 29, 2010
  84. 147Mass Effect 2 takes silver as Jan. sales slip 13% - NPDBrendan Sinclair — February 11, 2010
  85. 148Mass Effect Sales Top 7 MillionMatt Wingler — April 22, 2011
  86. 150Opening month US Mass Effect 3 sales double ME2'sRobert Purchese — March 14, 2012
  87. 152Opening month US Mass Effect 3 sales double ME2'sRobert Purchese — April 13, 2012
  88. 155Mass Effect: Andromeda was a financial successKirk McKeand — PCGamesN — July 28, 2017
  89. 1565 ETFs to Buy If You Love EA's Fourth-Quarter EarningsChris Ciaccia — The Street — May 14, 2017
  90. 158Why Mass Effect is some of the best sci-fi ever madeTauriq Moosa — August 14, 2021
  91. 160MagazineAfter Mass Effect: Redefining Videogame StorytellingJonathan Wood — January 9, 2013
  92. 162Top 7 Best New Franchises of this GenerationGamesRadar — November 8, 2010
  93. 163VideoMass Effect 2 PS3 Video ReviewJanuary 18, 2011
  94. 164If you like Mass Effect you'll also like…Patrick Carlson — March 20, 2017
  95. 167Mass Effect Trilogy Set AnnouncedAndrew Goldfarb — September 27, 2012
  96. 168Mass Effect: What Is N7 Day?Jacob Creswell — October 19, 2020
  97. 174Mass Effect: Pick Your PathEscapist Magazine — March 28, 2012
  98. 175Mass Effect banned in SingaporePhil Elliot — November 15, 2007
  99. 176Singapore unbans Mass EffectEmma Boyes — November 16, 2007
  100. 182Mass Effect 3 Extended Cutdarklarke — April 5, 2012
  101. 185Jessica Chobot: stepping into DaylightCharlie Hall — Polygon — September 13, 2013
  102. 187NewsSandy Hook Shooting: Video Games Blamed, AgainChristopher J. Ferguson — December 20, 2012
  103. 189EA trumps Trump ad, takes down supporter's retweeted Mass Effect videoKyle Orland — Ars Technica — April 5, 2016