Electronic Arts officially announced Mass Effect 2, detailing the game's development and release plans.
Mass Effect 2 was released worldwide for Xbox 360 and PC, continuing the saga of Commander Shepard.
Mass Effect 2 was released for PlayStation 3, expanding its availability to more gamers.
Commander Shepard is killed in an attack on the Normandy by a stealth collector ship.
Saren Arterius' final report on the Reaper threat is broadcasted, urging the Alliance to prepare for invasion.
Cerberus recovers Commander Shepard's body and begins the Lazarus Project to bring Shepard back to life.
Commander Shepard awakens after being revived by the Lazarus Project on the Cerberus facility.
Shepard begins recruiting a specialized team to investigate the disappearance of human colonies and the Reaper threat.
Shepard recruits former C-Sec officer Garrus Vakarian to assist with the mission.
Shepard tracks down Tali'Zorah and convinces her to join the mission.
Shepard recruits Mordin Solus, a brilliant scientist, to aid in the investigation.
The team investigates multiple attacks on human colonies to uncover the Collector's role in the disappearances.
Shepard travels to Omega to recruit Aria T'Loak and seek assistance against the Collectors.
Shepard recruits Miranda Lawson, a Cerberus operative genetically engineered for perfection.
Shepard recruits Jacob Taylor, a former Alliance soldier turned Cerberus operative.
Shepard finds and recruits Thane Krios, a deadly and skilled assassin.
Shepard recruits Jack, a powerful biotic with a troubled past.
Shepard awakens and recruits the Krogan clone Grunt to join the team.
Shepard finds and recruits Zaeed Massani, a skilled mercenary and bounty hunter.
Shepard and the team launch an assault on the Collector base to uncover the reason for the human colonies' abductions.
Shepard prepares the Normandy and crew for the high-risk mission to destroy the Collector base.
Shepard and crew undertake the dangerous mission to destroy the Collector base, facing many challenges and sacrifices.
