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