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.
Collect 10 Bobbleheads
Kill a Wanted Player
Complete "Queen of the Hunt"
Reach Level 100
Complete "Key to the Past"
Revive 20 Fallen Players
Play a Holotape Game
Complete the "Monster Mash" Event
Mod 50 Weapons
Win the "Breach and Clear" Event
Take 20 Photos
Win the "Scorched Earth" Event
Reach Level 50
Pick 50 Locks
Possess 10,000 Caps
Discover 100 Locations
Kill 5 Giant Creatures
Collect a Bobblehead
Join 20 Teams
Complete "Personal Matters"
Build 100 C.A.M.P. Items
Reach Level 25
Craft 5 Pieces of Armor
Kill Another Player
Fully Rank Up one Perk
Build 20 C.A.M.P. Items
Complete "Into the Fire"
Kill 300 Creatures
Reach Level 10
Complete "Final Departure"
Complete "Second Helpings"
Build a C.A.M.P.
Complete 20 Challenges
Gather 200 Pieces of Junk
Complete "First Contact"
Craft a Weapon
Complete 5 Challenges
Leave Vault 76
Complete "Recruitment Blues"
Complete "Heart of the Enemy"
Complete "Coming to Fruition"
Complete "Bunker Buster"
Complete "One of Us"
Complete "Officer on Deck"
Complete "Mistress of Mystery"
Read 20 Magazines
Be at Ground Zero of a Nuclear Blast
Hack 50 Terminals
Kill 20 Players
Complete "I Am Become Death"
Gain 1500 gold bullion
Complete "All That Glitters"
Complete Beckett's story
Gain 300 gold bullion
Find the Overseer
Complete "The Elusive Crane"
Complete "Buried Treasure"
Complete Sofia's story
Become allies with Foundation
Become allies with Crater
Complete “The Catalyst”
Craft a 1 star legendary mod, a 2 star legendary mod, and a 3 star legendary mod
Earn Elder Rewards from a Daily Op
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