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