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