Timeline

Urdnot Wrex is a fictional character in BioWare's Mass Effect franchise, who serves as a party member in the first game of the Mass Effect trilogy. He is a krogan, an alien race near-sterilised by other galactic races for their violence and high population growth. Introduced as an experienced krogan mercenary, his role changes in Mass Effect 2 and Mass Effect 3 where he becomes leader of an expanding krogan clan and eventual head of state for the krogan as a whole. After over 1000 years of aimless apathy, Wrex seeks to bring back hope to his people and reverse their fate by undoing the genophage. He is voiced by Steven Barr.

BioWare is a Canadian video game developer based in Edmonton, Alberta. It was founded in 1995 by newly graduated medical doctors Ray Muzyka, Greg Zeschuk and Augustine Yip. Since 2007, the company has been owned by American publisher Electronic Arts.

Mass Effect Legendary Edition is a compilation of the video games in the Mass Effect trilogy: Mass Effect (2007), Mass Effect 2 (2010), and Mass Effect 3 (2012). Developed by BioWare and published by Electronic Arts, the compilation was released on May 14, 2021, for PlayStation 4, Windows, and Xbox One. All three games were remastered, with visual enhancements, technical improvements, and gameplay adjustments. Mass Effect, the first game of the trilogy, received more extensive upgrades than its counterparts, specifically with regard to graphics, combat mechanics, vehicle handling, and loading times.

Mass Effect is a 2007 action role-playing game developed by BioWare and published by Microsoft Game Studios for the Xbox 360. It is the first game in the Mass Effect series, and takes place within the Milky Way galaxy in the year 2183, where civilization is threatened by a highly advanced machine race known as the Reapers. The player assumes the role of Commander Shepard, an elite human soldier who must stop a rogue agent from carrying out the Reapers' galactic invasion. The game involves completing multiple quests that generally involve space exploration, squad and vehicular combat, and interaction with non-player characters.

Mass Effect 2 is a 2010 action role-playing game developed by BioWare and published by Microsoft Game Studios and Electronic Arts. It was released for Windows and the Xbox 360 in January 2010, as well as the PlayStation 3 the following year. It is the second installment in the Mass Effect series and a sequel to the original Mass Effect. The game takes place within the Milky Way galaxy during the 22nd century, where humanity is threatened by an insectoid alien race known as the Collectors. The player assumes the role of Commander Shepard, an elite human soldier who must assemble and gain the loyalty of a diverse team to stop the Collectors in a suicide mission. Using a completed saved game of its predecessor, the player can impact the game's story in numerous ways.

Mass Effect 2: Lair of the Shadow Broker is a downloadable content pack developed by BioWare and published by Electronic Arts and Microsoft Game Studios for the 2010 action role-playing video game Mass Effect 2. It was released for Microsoft Windows and Xbox 360 on September 7, 2010. It was also included in the PlayStation 3 version of Mass Effect 2, which was released in 2011 by Electronic Arts. Set after the events of the Mass Effect: Redemption comic book, Lair of the Shadow Broker follows the story of information broker Liara T'Soni and her efforts to find an information dealer known as the Shadow Broker.

Mass Effect 3: Citadel is a downloadable content (DLC) pack developed by BioWare and published by Electronic Arts for the 2012 action role-playing video game Mass Effect 3. It was released for PlayStation 3, Windows, and Xbox 360 in March 2013. The pack follows Commander Shepard and the crew of the Normandy SR-2 starship on shore leave, where they must uncover the truth surrounding a conspiracy against Shepard.

Mass Effect 3 is a 2012 action role-playing game developed by BioWare and published by Electronic Arts. The third major entry in the Mass Effect series and the final installment of the original trilogy, it was released in March 2012 for Windows, Xbox 360, and PlayStation 3. A Wii U version of the game, entitled Mass Effect 3: Special Edition, was later released as a launch title on November 18, 2012, which notably supported Nintendo Network connection features for multiplayer interaction. The game is set within the Milky Way galaxy in 2186, where galactic civilization is invaded by a very advanced machine race of synthetic-organic starships known as Reapers.

Mass Effect: Andromeda is a 2017 action role-playing game developed by BioWare and published by Electronic Arts. It is the fourth major entry in the Mass Effect series and was released in March 2017 for PlayStation 4, Windows, and Xbox One. The game is set within the Andromeda Galaxy during the 29th century, where humanity is planning to populate new home worlds as part of a strategy called the Andromeda Initiative. The player assumes the role of either Scott or Sara Ryder, an inexperienced military recruit who joins the Initiative and wakes up in Andromeda following a sleeper ship journey.