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