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