The Fallout series has had many memorable factions throughout each of the games. Some factions might be known for their outfits while other factions are known for their characters. Major factions such as the Brotherhood of Steel can be found in multiple games in the series, while some factions such as the Gunners are only found in one game.
Most of the characters in the Fallout series have a connection to the factions in the series, whether negative or positive. The player is usually able to become friends or enemies with each faction depending on the choices they make throughout the given game. Here are 10 of the best factions that can be found in the Fallout series.
10 Gunners
The Gunners are a faction in Fallout 4 who more or less take over the role of Talon Company from Fallout 3. The Gunners are a mercenary group that will attack the player on sight. As the player levels up, the Gunners start getting better gear such as power armor and combat armor to challenge the player.
One companion, McCready, has a quest where the player must help him kill some Gunners who are giving him trouble. Players are able to travel to Gunner strongholds and kill their leadership, weakening their position in the Commonwealth.
9 Treeminders
The Treeminders are a faction in Fallout 3 that can be found in the oddly green Oasis. Talking to the members of the faction will reveal they are worshipping a man who had turned into a tree, who is revealed to be Harold from the earlier games. Because of Harold's condition, he is spreading greenery throughout the area he is rooted at.
While most Treeminders can be found in Oasis, one former member can be found in a church, where he snipes people passing by. There is a quest related to the Treeminders where the player can either accelerate Harold's heart's growth, stop the growth, or destroy Harold's heart and kill him.
8 Regulators
The Regulators are a group of vigilantes who can be found in the Capital Wasteland in Fallout 3. If a player has good karma, they can acquire a perk where the player can join the Regulators and hunt down evil characters for a profit. Likewise, Regulators can hunt down a player if they have evil karma.
With the lawbringer perk, players can bring the fingers of evil karma characters to the Regulators HQ for a few caps. Becoming part of the Regulators is a fun addition to the game, allowing them to feel good about killing off any evil character that crosses their path.
7 Atom Cats
The Atom Cats are a group that can be found in the Commonwealth in Fallout 4. The Atom Cats are like greasers of the 1950s, including their logo on the back of their jacket, preserving the subcultural lingo from their time, and painting their power armor suits to look like hotrods.
Players are able to join the Atom Cats after helping repair a pump at the Warwick homestead and defending it from Gunners. If you can't find the Atom Cats garage, meeting a member named Duke who roams the Commonwealth will mark the location on the map.
6 The Kings
The Kings are a group who can be found in Freeside in Fallout: New Vegas. The Kings were founded by a man who found a building that had images of a man who was called 'The King.' The man was Elvis, and the gang modeled their mannerisms and style after him, most specifically in his Jailhouse Rock era.
The Kings are the most dominant group in Freeside, protecting the citizens and having the respect of the community. Through completing quests, the player is able to join The Kings and get their own leather jacket.
5 1st Recon
The 1st Recon is a group of snipers in the New California Army, known for their red berets and marksmanship. The first member of the group the player is likely to meet is Boone, a former member who can be found in Novac. The 1st Recon is famous throughout the Mojave Wasteland, especially for their role in the Bitter Springs Massacre.
The 1st Recon can be first found at Camp McCarran where the player can help them hunt down bounties and talk to the members of the squad. After helping with the bounties, the 1st Recon relocates to Camp Forlorn Hope, where they stay for the rest of the game.
4 Boomers
The Boomers are a group of isolated vault dwellers who can be found at Nellis Air Force Base in Fallout: New Vegas. Before living in the air force base, the Boomers lived at Vault 34. The Boomers dress with flight jackets over their vault suits, covered in war medals and patches.
To meet the Boomers, the player must cross a field of artillery and make it to the front gate. After the meeting, the player can help the Boomers raise a B-29 from the bottom of Lake Mead, which the Boomers will repair and use in the Battle of Hoover Dam. Depending on the choices the player makes, the Boomers may leave the base and start making contact with the rest of the wasteland.
3 Caesar's Legion
Caesar's Legion is a major faction in Fallout: New Vegas that is fighting for control over the Hoover Dam and New Vegas. The faction models itself after the Roman Empire, having legionaries and referring to their leader as Caesar.
The Legion also has a legend amongst its ranks of the Burned Man, the legate who was burned and thrown into the Grand Canyon. This legate, now known as Joshua Graham, can be found in the Honest Hearts DLC.
2 New California Republic
The New California Republic was founded by residents of Vault 15, reviving the California Republic from before the war. The Republic encompasses the West Coast of America. In Fallout: New Vegas, the NCR is fighting for control of the Hoover Dam and of the Mojave Wasteland.
The player is able to join the NCR and side with them in The Battle of Hoover Dam. Quests for the faction includes killing off raiders in the Mojave Wasteland, protecting the president from assassination, and finding allies for the final battle.
1 Brotherhood of Steel
The Brotherhood of Steel was founded by an army captain named Maxson after the Great War. From their founding to the events of Fallout 4, the Brotherhood has acquired technology such as power armor, laser weapons, and even a gigantic robot named Liberty Prime.
The last descendant of Captain Maxson, Arthur Maxson, has a prominent role leading the Brotherhood in Fallout 4. The Brotherhood defeated the Enclave in the Capital Wasteland and can go on to defeat the Institute in the Commonwealth, depending on the player's actions. The Brotherhood is a worthy foe, and not to be messed with.