Full list of all 69 Fallout 76 achievements worth 1,490 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 4 DLC packs containing 19 achievements worth 490 Gamerscore.
Complete "Mistress of Mystery"
Leave Vault 76
Reach Level 50
Possess 10,000 Caps
Complete "Officer on Deck"
Kill a Wanted Player
Complete "Into the Fire"
Complete "Personal Matters"
Craft 5 Pieces of Armor
Kill 5 Giant Creatures
Complete the "Monster Mash" Event
Complete "One of Us"
Complete "Bunker Buster"
Join 20 Teams
Reach Level 25
Discover 100 Locations
Build 100 C.A.M.P. Items
Collect 10 Bobbleheads
Build a C.A.M.P.
Pick 50 Locks
Take 20 Photos
Complete 20 Challenges
Build 20 C.A.M.P. Items
Collect a Bobblehead
Fully Rank Up one Perk
Play a Holotape Game
Kill Another Player
Gather 200 Pieces of Junk
Craft a Weapon
Kill 300 Creatures
Complete 5 Challenges
Complete "First Contact"
Complete "Final Departure"
Complete "Second Helpings"
Complete "Recruitment Blues"
Complete "Heart of the Enemy"
Complete "Key to the Past"
Complete "Coming to Fruition"
Complete "Queen of the Hunt"
Win the "Scorched Earth" Event
Win the "Breach and Clear" Event
Reach Level 100
Read 20 Magazines
Be at Ground Zero of a Nuclear Blast
Hack 50 Terminals
Mod 50 Weapons
Revive 20 Fallen Players
Kill 20 Players
Reach Level 10
Complete "I Am Become Death"
Find the Overseer
Complete "The Elusive Crane"
Complete "Buried Treasure"
Complete "All That Glitters"
Complete Sofia's story
Complete Beckett's story
Become allies with Foundation
Become allies with Crater
Gain 300 gold bullion
Gain 1500 gold bullion
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.