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