Shin Megami Tensei III Nocturne HD Remaster, like many other entries in the series, features multiple endings. During the adventure, you will have to make some choices that will slightly change your alignment which, in turn, make you more likely to get one ending instead of another. Picking the right choices, however, is not enough to unlock a particular ending, as there are other things that must or must not be done in order to achieve certain endings. The only exception is the True Demon Ending, which can be achieved no matter your choices during the playthrough.
Here’s how to get all endings in Shin Megami Tensei III Nocturne HD Remaster
How To Get All Endings In Shin Megami Tensei III Nocturne HD Remaster
The Reason Of Musubi
The three reason endings change depending on which of the main characters you decide to back. For the Reason of Musubu Ending, you need to not complete the Labyrinth of Amala before reaching the Tower of Kagutsuchi, flag the Musubi Reason, talk to Isamu in the Amala Network, agree to most of his questions, fight and defeat Ahriman and Baal in the Tower of Kagutsuchi and then defeat the final boss.
The Reason Of Yosuga
To get the Reason of Yosuga ending, you must not complete the Labyrinth of Amala and must not flag Shijima and Musubi, flag the two Yosuga questions, defeat Futomimi in Mifunashiro and then complete the Tower of Kagutsuchi dungeon.
The Reason Of Shijima
To get the Reason of Shijima ending, you must avoid completing the Labyrinth of Amala dungeon, flag the Shijima Reason, talk to Hikawa in the Mantra HQ, agree to all of his questions, defeat Noah and Baal at the end of the Tower of Kagutsuchi and then proceed to fight the final boss.
Although not a reason ending, the Freedom ending still sees you aligning with a particular character, your teacher Yoko Takao. To get this ending, you must not complete the Labyrinth of Amala and you must not flag any of the three reason endings. Then, in Yoyogi Park, you will have to confirm you can take it twice, and then proceed through the game normally.
The Demon ending is triggered by following the same steps as those for the Freedom ending, only that you will have to tell Aradia in Yoyogi Park that you are terrified twice. Proceed through the game and defeat the final boss to get the Demon ending.
The True Demon ending is the same that will require the most effort. Not only you have to complete the Labyrinth of Amala before reaching the Tower of Kagutsuchi, but you will also have to defeat the eleven Fiends in the game so to obtain their Menorah. Once this is done, no matter which other ending has been flagged, you will confront Lucifer in the Tower of Kagutsuchi, and unlock the True Demon ending after defeating him.