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