Full list of all 72 Fallout 76 achievements worth 1,580 gamerscore. It takes around 80-100 hours to unlock all of the achievements in the base game on Xbox One.
The base game contains 50 achievements worth 1,000 Gamerscore, and there are 5 DLC packs containing 22 achievements worth 580 Gamerscore.
Complete "Coming to Fruition"
Win the "Breach and Clear" Event
Complete "Key to the Past"
Reach Level 100
Complete "Into the Fire"
Complete "Queen of the Hunt"
Win the "Scorched Earth" Event
Take 20 Photos
Possess 10,000 Caps
Be at Ground Zero of a Nuclear Blast
Complete "I Am Become Death"
Complete "Officer on Deck"
Complete the "Monster Mash" Event
Reach Level 50
Collect 10 Bobbleheads
Pick 50 Locks
Craft 5 Pieces of Armor
Join 20 Teams
Complete "One of Us"
Reach Level 25
Complete "Bunker Buster"
Kill 5 Giant Creatures
Discover 100 Locations
Build 100 C.A.M.P. Items
Build 20 C.A.M.P. Items
Collect a Bobblehead
Kill 300 Creatures
Kill a Wanted Player
Kill Another Player
Reach Level 10
Complete 20 Challenges
Build a C.A.M.P.
Complete "Final Departure"
Fully Rank Up one Perk
Complete "Second Helpings"
Play a Holotape Game
Complete "First Contact"
Complete 5 Challenges
Gather 200 Pieces of Junk
Craft a Weapon
Leave Vault 76
Complete "Recruitment Blues"
Complete "Heart of the Enemy"
Complete "Mistress of Mystery"
Complete "Personal Matters"
Read 20 Magazines
Hack 50 Terminals
Mod 50 Weapons
Revive 20 Fallen Players
Kill 20 Players
Gain 1500 gold bullion
Become allies with Crater
Gain 300 gold bullion
Complete "All That Glitters"
Find the Overseer
Complete "The Elusive Crane"
Complete "Buried Treasure"
Complete Sofia's story
Complete Beckett's story
Become allies with Foundation
Complete “The Catalyst”
Earn Elder Rewards from a Daily Op
Craft a 1 star legendary mod, a 2 star legendary mod, and a 3 star legendary mod
Lead and complete "Union Dues" and "From Ashes to Fire"
Complete 10 Favors for people in The Whitespring Refuge
Kill 100 Trogs with an Auto Axe
Lead and complete “Tax Evasion” and “The Most Sensational Game”
Kill 10 Lesser Devils with a melee weapon.
Build 5 casino games in your CAMP.
Lead and Complete "The Human Condition"
Complete "Sins of the Father"
Kill 100 Overgrown with fire