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