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.
Kill 5 Giant Creatures
Complete 50 Misc. Objectives
Craft 100 Items
Complete "Nuclear Family"
Complete "Rockets' Red Glare"
Complete "Underground Undercover"
Complete "Powering Up"
Complete "Mankind-Redefined"
Join the Railroad
Hack 50 Terminals
Placed A Grenade Or Mine While Pickpocketing
Reach Level 50
Create 50 Weapon Mods
Read 20 Magazines
Complete 10 Side Quests
Complete "The Nuclear Option"
Decide the Fate of the Commonwealth
Complete "Ad Victoriam"
Complete "Blind Betrayal"
Complete "Institutionalized"
Complete "The Molecular Level"
Kill 300 People
Reach Maximum Relationship Level with a Companion
Complete "Hunter/Hunted"
Ally with 3 Settlements
Get a Touchdown
Reach Level 25
Kill 300 Creatures
Discover 100 Locations
Pick 50 Locks
Complete "Old Guns"
Complete "Dangerous Minds"
Complete "Reunions"
Recruit 5 Separate Companions
Gather 1000 Resources Used For Crafting
Complete "Unlikely Valentine"
Complete "Taking Independence"
Get a Homerun
Join the Brotherhood of Steel
Reach Level 10
Complete "Sanctuary"
Join the Minutemen
Build 100 Workshop Items
Reach Level 5
Complete "When Freedom Calls"
Enter The Wasteland
Play a Holotape Game
Reach Maximum Happiness in a Large Settlement
Collect 10 Vault-Tec Bobbleheads
Collect 20 Vault-Tec Bobbleheads
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"
Defeat 30 Far Harbor Sea Creatures
Collect all issues of "The Islander's Almanac" magazine
Complete the quest "Cleansing the Land"
Complete the quest "The Way Life Should Be"
Discover 20 Far Harbor Locations
Complete the quest "Where You Belong"
Unlock 3 Far Harbor Workshop 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
Assign a settler to a pillory
Display a weapon on a weapon rack, armor on an armor rack, and power armor in a power armor display
Complete "Power Play"
Complete "Home Sweet Home"
Complete "The Grand Tour"
Complete "Taken for a Ride"
Complete 12 quests for any Nuka-World Raider Gangs
Collect every issue of Scav! Magazine
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
Redeem 100,000 tickets at the Nuka-Cade