Darksiders 3 has two different endings. You will receive the first one after the normal end of the game, associated with the destruction of all the Seven Deadly Sins and the traitor. To get an alternative ending, while traveling through the Scar location, before jumping into the wasteland with a hurricane, go back. On the ledge on the right, where a huge monster roams, there is an air vortex. use it in Storm form to go upstairs and enter the elevator to find yourself in the lair of Abraxis. You must kill Abraxis to get his soul. After that, using any portal, return to the chambers of the Lord of the Void and talk to him. Be sure to spare him, as a result of which he will leave behind a mysterious stone amulet. Rage will pick it up automatically and the amulet will be placed in an empty inventory slot. Throughout the game, the amulet does not bring any benefit, but at the end you will see a completely different cut-scene with small additions. You can watch this video here: https://youtu.be/S6vs7eS620o
