<P> The fourth game takes place in the Heleus Cluster of the Andromeda galaxy, 634 years after the events of its predecessor . When the Milky Way races arrive there, Heleus is embroiled in a brutal conflict between two native races: the Kett, a barbaric race obsessed with assimilating the traits of other sentient species through a process known as "exaltation"; and the Angara, a humanoid species whose civilization has recently been targeted and nearly decimated by the Kett . The Heleus Cluster is also the location of a series of ruins predating an advanced, spacefaring race known as the Jardaan . </P> <P> The Jardaan made use of powerful terraforming technologies to colonize worlds in the Heleus Cluster, which were otherwise extremely hazardous and naturally unsustainable for life . They later fled from the Heleus Cluster three centuries before the arrival of the Milky Way races, when a protracted battle against an unknown enemy faction resulted in the usage of a weapon of mass destruction aboard a Jardaan space station . The weapon's activation unleashed a cataclysmic energy phenomenon known as the Scourge, which spread across the cluster and greatly damaged the Jardaan's terraforming systems . After the Jardaan left, the Angara, genetically engineered creations of the elder race, began to develop their own civilization before falling under attack by the encroaching Kett . </P> <P> A trilogy of games has been released, each continuing the previous game's story in chronological order . The Mass Effect series combines action role - playing game elements, with the main series games being in third - person perspective . The protagonist can use two AI - controlled squad members in battle, which usually consist of members he or she has recruited from various places and for various reasons, and taken onto the SSV Normandy SR - 2, Shepard's stealth - recon starship . The player could make perspective decisions depending upon the situation . At these times, the player has multiple sets of dialogue choices with which to respond to NPCs, separated by tone . Starting from Mass Effect 2, the player can interrupt cut - scenes calmly or aggressively . The games often have various mini-games in them as well, such as drinking, dancing and romancing characters . </P> <Table> <Tr> <Th> Year </Th> <Th> Title </Th> <Th> Developer </Th> <Th> Platform (s) </Th> </Tr> <Tr> <Td> 2007 </Td> <Td> Mass Effect </Td> <Td> BioWare </Td> <Td> Microsoft Windows, PlayStation 3, Xbox 360 </Td> </Tr> <Tr> <Td> 2009 </Td> <Td> Mass Effect Galaxy </Td> <Td> iOS </Td> </Tr> <Tr> <Td> </Td> <Td> Mass Effect 2 </Td> <Td> Microsoft Windows, PlayStation 3, Xbox 360 </Td> </Tr> <Tr> <Td> 2012 </Td> <Td> Mass Effect Infiltrator </Td> <Td> IronMonkey Studios </Td> <Td> iOS, Android, Windows Phone </Td> </Tr> <Tr> <Td> Mass Effect 3 </Td> <Td> BioWare </Td> <Td> Microsoft Windows, PlayStation 3, Xbox 360, Wii U </Td> </Tr> <Tr> <Td> Mass Effect Datapad </Td> <Td> iOS </Td> </Tr> <Tr> <Td> Mass Effect Trilogy </Td> <Td> Microsoft Windows, PlayStation 3, Xbox 360 </Td> </Tr> <Tr> <Td> 2017 </Td> <Td> Mass Effect: Andromeda </Td> <Td> Microsoft Windows, PlayStation 4, Xbox One </Td> </Tr> <Tr> <Td> Mass Effect: Andromeda APEX HQ </Td> <Td> iOS, Android </Td> </Tr> <Tr> <Td_colspan="4"> Notes: <Dl> <Dd> 1 . The PlayStation 3 and Windows versions of Mass Effect were ported by Demiurge Studios . </Dd> <Dd> 2 . Available on Sony's PlayStation Now streaming service </Dd> <Dd> 3 . Mass Effect 3: Special Edition was ported by Straight Right . </Dd> <Dd> 4 . Removed from the App Store . </Dd> <Dd> 5 . Bundled collection of Mass Effect, Mass Effect 2, and Mass Effect 3 . </Dd> </Dl> </Td> </Tr> </Table>

What is the main ship used by commander shepard in the mass effect franchise called
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