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