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