Full list of all 84 Fallout 4 achievements. It takes around 80-100 hours to unlock all of the achievements in the base game on Windows.
The base game contains 50 achievements, and there are 6 DLC packs containing 34 achievements.
Complete "Ad Victoriam"
Complete "Nuclear Family"
Decide the Fate of the Commonwealth
Complete "The Nuclear Option"
Complete "Rockets' Red Glare"
Complete "Underground Undercover"
Complete "Powering Up"
Complete "Mankind-Redefined"
Collect 20 Vault-Tec Bobbleheads
Complete 50 Misc. Objectives
Reach Maximum Happiness in a Large Settlement
Complete "Blind Betrayal"
Complete "Institutionalized"
Complete "The Molecular Level"
Complete "Hunter/Hunted"
Complete "Old Guns"
Reach Level 50
Complete "Taking Independence"
Complete "Dangerous Minds"
Complete "Reunions"
Get a Homerun
Kill 5 Giant Creatures
Collect 10 Vault-Tec Bobbleheads
Complete "Unlikely Valentine"
Recruit 5 Separate Companions
Join the Railroad
Kill 300 People
Reach Level 25
Discover 100 Locations
Complete 10 Side Quests
Hack 50 Terminals
Reach Maximum Relationship Level with a Companion
Kill 300 Creatures
Join the Brotherhood of Steel
Placed A Grenade Or Mine While Pickpocketing
Read 20 Magazines
Pick 50 Locks
Ally with 3 Settlements
Craft 100 Items
Create 50 Weapon Mods
Build 100 Workshop Items
Reach Level 10
Join the Minutemen
Gather 1000 Resources Used For Crafting
Get a Touchdown
Reach Level 5
Complete "Sanctuary"
Complete "When Freedom Calls"
Enter The Wasteland
Play a Holotape Game
Complete "Restoring Order"
Complete "Headhunting"
Unlock 10 Robot Mods
Build 10 Robot Mods
Complete "Mechanical Menace"
Have 5 Tamed Creatures in a Settlement
Start a Spectated Arena Fight in a Settlement
Build One of Every Cage Type
Complete the quest "Close to Home"
Complete the quest "The Way Life Should Be"
Complete the quest "Cleansing the Land"
Defeat 30 Far Harbor Sea Creatures
Complete the quest "Where You Belong"
Collect all issues of "The Islander's Almanac" magazine
Unlock 3 Far Harbor Workshop Locations
Discover 20 Far Harbor Locations
Cook One of the New Far Harbor Recipes
Complete the quest "Far From Home"
Become Overseer
Equip Vault 88 suit and Pip-boy on a settler
Unlock all build areas of Vault 88
Produce 100 objects from your builders
Display a weapon on a weapon rack, armor on an armor rack, and power armor in a power armor display
Assign a settler to a pillory
Create 20 different flavors of Nuka-Cola
Collect every issue of Scav! Magazine
Complete "Power Play"
Establish 8 Raider Camps in the Commonwealth
Complete "Home Sweet Home"
Complete "The Grand Tour"
Defeat 40 Nuka-World Creatures while under the effect of any Nuka-Mix flavor
Complete 12 quests for any Nuka-World Raider Gangs
Redeem 100,000 tickets at the Nuka-Cade
Complete "Taken for a Ride"