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