Fallout 4 is a pretty massive game that allows players to take on the role of the Sole Survivor, a Vault Dweller from Vault 111 who is in search of their son. During their time in the Commonwealth, the Sole Survivor can make a ton of allies.

Whether they are building settlements and recruiting settlers to come and stay with them or are traveling the world, looking for people who need their help, the player character is important. Here are all the factions they can join in the game.

Related
Fallout 4: Best Vehicle Mods

Having vehicles in Fallout 4 can be a great help, and these are some of the best mods available for players

What Are Factions?

Factions are the many different groups throughout the game that all want something. Some factions want to help the world, while others want to condemn it. There are four main factions that players can join and then several minor ones that can be fun to join as well. Whether players want to be the good or the bad guy, there's a faction for any play style. Unfortunately, there are some factions that will always be hostile towards the player, no matter what they do (unless they use console commands).

Related
Fallout 4: Best Play Order For The DLCs

Fallout 4 has four different DLCs. Here's the best play order for these DLCs and when they should be played during the game.

All Factions The Player Can Join

fallout-4-railroad-hq

Here are all the factions that players can join in the game and how they can join them. Please note that while the Sole Survivor can join the four main factions (Brotherhood of Steel, Minutemen, The Railroad, and The Institute), players will need to decide which one they want to side with at the end of the game, meaning that while they can join them all, they will need to pick one to side with in the end.

Related
Fallout 4: 13 Strongest Female Characters, Ranked

Fallout 4 may not be the most well-regarded Fallout tile, but there's no denying that it features a bevy of memorable female characters.

Please note that some of these factions are more likely categorized as allies rather than organizations the player is a member of. However, they are all factions that can accept the player with open arms (as long as they agree with the player).

Faction Name

DLC or Base Game

Location

How To Join

What They Stand For

Acadia

DLC - Far Harbor

Acadia

Agree to help DiMA and the Synths during the Far Harbor DLC. Keep DiMA's secret about Captain Avery.

Acadia is a place for Synths to go and live in peace.

Atom Cats

Base Game

Atom Cats Garage

Repair their pump at Warwick Homestead.

They are Power Armor enthusiasts and will give the player a discount for joining them.

Brotherhood of Steel

Base Game

  • Cambridge Police Station
  • Boston Airport
  • Find the Brotherhood in the Cambridge Police Station and help them repel the Feral Ghoul Attack.
  • Travel to Boston Airport after the Brotherhood's airship flies into the Commonwealth.

The Brotherhood believes in preserving advanced technology. They do not believe in liberating the Synths and disagree with The Institute's technology.

Children of Atom

DLC - Far Harbor

The Nucleus

Find The Nucleus in Far Harbor, go to the Spring of Atom and see The Mother, and then agree to join them.

The Children of Atom believe that the nuclear fallout was due to Atom, a deity that is basically the radiation in the world. To them, nuclear weapons are holy tools that represent their God.

Disciples

DLC - Nuka-World

Fizztop Mountain

Ally with them rather than the other raider groups.

The Disciples are one of Nuka-World's three raider gangs. They are known for being bloodthirsty and ruthless.

Harbormen

DLC - Far Harbor

Far Harbor

Help them with whatever they need while playing the Far Harbor DLC and inform them about the truth about Captain Avery.

They are the people who live on the docks in Far Harbor. They are mistrustful of outsiders but will accept the Sole Survivor.

Hubologists

DLC - Nuka-World

The Hubologist Camp

This is more of a mutual relationship than joining their faction. If the Sole Survivor helps the Hubologists with building their "UFO," they will give them a boost to their Intelligence.

The Hubologists want to fix up a Nuka-World ride that they believe is a UFO so they can go to space.

Minutemen

Base Game

  • Sanctuary Hills
  • The Castle

Meet Preston Garvey in Concord and agree to help the Minutemen rebuild the Commonwealth.

They are just like the historical Minutemen. They stand for protecting themselves and the Commonwealth from enemies.

Operators

DLC - Nuka-World

The Parlor

Ally with them rather than the other raider groups.

This is the raider gang from Nuka-World that focuses on making a profit more than anything else.

Pillars of the Community

Base Game

Charles View Amphitheater

Travel to the Charles View Amphitheater and agree to give up everything.

The cult will actually take all the Sole Survivor's possessions if they agree to join them.

They are a cult that believes in ridding themselves of worldly possessions in order to reach enlightenment.

The Institute

Base Game

The Institute

Travel to The Institute after building the teleporter and agree to help out The Institute instead of everyone else.

They believe in preserving humanity through technology and created the Synths, which they view as robots and treat as slaves.

The Pack

DLC - Nuka-World

Bradberton Amphitheater

Ally with them rather than the other raider groups.

This is the final raider group in Nuka-World. They believe in survival of the fittest and constantly try to become the "Alpha" of the group.

The Railroad

Base Game

Old North Church

Find them in the Old North Church and help them save Synths from The Institute.

They believe that Synths are just like humans and deserve equal rights.

fallout 4 box art
Fallout 4

Platform(s)
PC , PS4 , PS5 , Xbox One , Xbox Series X , Xbox Series S
Released
November 10, 2015
Developer(s)
Bethesda
Publisher(s)
Bethesda