If the Collector Base was savedIn Mass Effect 2 you're given a choice at the end of the game to either destroy, or keep the Collector's Base intact. The following endings are possible only if the base was NOT destroyed. Note: If you did not import a Mass Effect 2 save it is assumed that you destroyed the Collector Base.With a readiness rating is below 1,750 pointsyou can choose to destroy the Reapers, or control the Reapers, but regardless of your choice Earth is still destroyed.[/list]If your readiness rating is at 1,750you can choose to destroy the reapers, but Earth is still destroyed.[/list]If your readiness rating is at 2,050you can choose to control the Reapers, and Earth is saved.[/list]If your readiness rating is at 2,350you can choose to destroy the Reapers and save Earth, but Earth is devastated.[/list]If your readiness rating is at 2,650you can destroy the Reapers and save Earth.[/list]If your readiness rating is at 2,800you can choose the synergy ending for synthetics and organics saving the planet Earth, and the entire Galaxy.[/list]If your readiness rating is at 4,000you can choose to destroy the reapers, be able to "save" Anderson and Shepard lives.[/list]If your readiness rating is at 5,000you can choose to destroy the reapers. If you were unable to "save" Anderson Shepard still lives.
If the Collector Base was destroyedIf you did not import a Mass Effect 2 save it is assumed that you destroyed the Collector Base. If that's the case, or if you imported a save where you made the decision to destroy the Collector base these are the possible endings.With a readiness rating that's under 1,750 points,Earth will be destroyed regardless of the choice you made. You can still choose to control the Reapers, or Destroy them, but it will not affect the outcome.[/list]With a readiness rating at 1,750you can choose to control the reapers, but Earth will still be destroyed.[/list]With a readiness rating at1,900 you can choose to destroy the Reapers and save Earth, but Earth will be devastated.[/list]With a readiness rating at 2,350you can choose to control the Reapers and by doing so you'll save Earth.[/list]With a readiness rating of 2,650you can choose to destroy the Reapers and Earth will be saved.[/list]With a readiness rating of 2,800you can choose the Synergy ending that will combine organics and synthetics. Earth will be saved as well as the Galaxy if you get this ending.[/list]With a readiness rating of 4,000you can choose to destroy the Reapers, and you can "save" Anderson. Shepard also lives in this scenario.[/list]With a readiness rating of 5,000you can choose to destroy the Reapers, and if you don't "save" Anderson, Shepard will still live.[/list]New Game+ EndingBeat Mass Effect 3 a second time (often referred to as playing a New Game+) and you will unlock a secret ending.[/list]