Fallout 4 culminates in an explosive ending, although exactly what kind depends on a final choice made by the player in the last few hours of its campaign. There are two main endings to Fallout 4, each of which is tied to one of the main factions in the Institute conflict. However, minor details of the ending are also influenced by the player’s relationships with the various factions of Fallout 4. Both their alliances and their rivalries will come into play in the final moments of Fallout 4, bringing an all-encompassing conclusion to an epic story of warring ideologies.