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