Fallout 76 Allies

Overview
Allies were first introduced in the Wastelanders update, as humans returned to Appalachia. Instead of the companion system seen in other Fallout games, allies act as "roommates" at the player's C.A.M.P. and are tied to unique settlement objects. The player can only have one ally in their C.A.M.P. at a time; this extends to their C.A.M.P. storage as well.

If one wishes to change their current ally, they must scrap the present settlement object and build a new one for the different ally. Ally settlement objects are located under their own tab in the build menu ("Ally") and cannot be stored.

Two allies, Sofia Daguerre and Beckett, offer unique questlines and an overarching story, at the end of which they can be romanced if one decides to pursue that option. This provides the player with a temporary XP boost, Lover's Embrace, upon sleeping in a bed with the romanced ally nearby. The other three allies (the raider and two settlers) only offer radiant quests.

Lite allies
Steel Dawn introduced two new allies, referred to as "lite allies." Lite allies will not act as quest givers, and will instead provide other services. They could be unlocked by progressing through The Scribe of Avalon, the third Fallout 76 season.

Following the Fallout Worlds update and The Unstoppables vs The Diabolicals, the sixth season, two new lite allies were added, and like in the third season, were unlocked by progressing through the season.

The seventh season, Zorbo's Revenge and the accompanying update with the arrival of the Wise Mothman's cultists and the seasonal event The Mothman Equinox introduced another two lite allies that, like the previous lite allies, can be unlocked via progression in the season's scoreboard. Night of the Moth made all previous lite allies available if the player purchases their plans from Samuel with a Foundation reputation of "ally", meaning their rep with Foundation must be at the maximum, and 4000 gold bullion for each ally.

The eighth season, A Better Life Underground introduced another lite ally, Sam Nguyen.

Lite allies may have their own affinity mechanic, as it is possible to talk to Maul and an option says [Medium Affinity]. If so, it is currently unknown how to raise affinity and what effects it does, such as if it unlocks more dialogue.

Bugs

 * Allies may sometimes not wear their clothes and appear in their underwear. Logging in and out should solve this issue.
 * The conversation menu may not open when interacting with the ally, with them only repeating a phrase if interacted with. This can be fixed by going somewhere else and returning to the ally.