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