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