Deimos is the final confrontation and the family's true test — Alexios shaped by the Cult into the weapon he was meant to become, the brother and the sister on opposite sides of everything the game has built. Home for Kassandra is not Sparta, which cast her out. It is not Kephallonia, which was a waystation. It is not any geography. It is the resolution of the running — the moment where the odyssey is complete because the thing it was searching for has been found or acknowledged as unfindable.

The outcome of the final boss depends on the choices made throughout the game. The game's most honest statement about what it has been doing is embedded in this: the ending is the record of the choices, the resolution shaped by every decision from Kephallonia to here. Home is where you stop running. The stopping is the game's last gift.