is bringing the game back to the Milky Way Galaxy, which means that the events of the original trilogy are going to be more important moving forward than they were when the series took a trip to visit Andromeda. However, returning the series to its roots means that the developers will have to choose which ending is the canon ending of , even though many players found this part of the trilogy to be lackluster. Alternatively, there's a way to continue the story of the original trilogy without having to pick one of the endings.
has three primary endings and one extra ending, and each of them would create a completely different set-up for. The Destroy ending tends to be considered more likely to be canon compared to the others, especially with the extra scene that shows Shepard taking a breath in the rubble if the player has enough War Assets. Then, the Synthesis ending combines natural and synthetic life, while the Control ending has Shepard take control of the Reapers. Finally, choosing not to pick an ending results in Shepard watching the Reapers destroy ships from the Crucible.
The short answer is that the Indoctrination Theory is the idea that Shepard is in the process of being indoctrinated by the Reapers to join their side, and that the ending sequence is where the indoctrination culminates to the point of either being successful, or Shepard manages to overcome the Reapers' influence. Players created the Indoctrination Theory as an ending that feels more fitting for the series, and make sense of the multiple plot holes and strange moments that don't feel like they fit into the story. A lot of details make the theory seem intended to an extent.
Mass Effect’s morality system has small effects on which choices are available to you throughout the game, but these options are meaningless.
The Indoctrination Theory has been repeatedly confirmed as not what the developers intended, but it does fit into the last game as a way to explain the parts that felt like they
Read more on screenrant.com