Full list of all 84 Fallout 4 achievements worth 1,600 gamerscore. It takes around 80-100 hours to unlock all of the achievements in the base game on Xbox One.
The base game contains 50 achievements worth 1,000 Gamerscore, and there are 6 DLC packs containing 34 achievements worth 600 Gamerscore.
Kill 5 Giant Creatures
Collect 10 Vault-Tec Bobbleheads
Complete "The Nuclear Option"
Complete "Ad Victoriam"
Complete "Blind Betrayal"
Reach Level 50
Complete "Nuclear Family"
Decide the Fate of the Commonwealth
Complete "Powering Up"
Complete "Mankind-Redefined"
Complete "Institutionalized"
Complete "The Molecular Level"
Complete "Hunter/Hunted"
Hack 50 Terminals
Complete 50 Misc. Objectives
Create 50 Weapon Mods
Complete "Dangerous Minds"
Complete "Reunions"
Complete 10 Side Quests
Reach Maximum Relationship Level with a Companion
Kill 300 People
Read 20 Magazines
Complete "Unlikely Valentine"
Join the Railroad
Reach Level 25
Recruit 5 Separate Companions
Pick 50 Locks
Kill 300 Creatures
Craft 100 Items
Get a Homerun
Discover 100 Locations
Complete "Old Guns"
Complete "Taking Independence"
Ally with 3 Settlements
Build 100 Workshop Items
Join the Brotherhood of Steel
Reach Level 10
Complete "Sanctuary"
Gather 1000 Resources Used For Crafting
Join the Minutemen
Get a Touchdown
Reach Level 5
Complete "When Freedom Calls"
Enter The Wasteland
Play a Holotape Game
Complete "Underground Undercover"
Complete "Rockets' Red Glare"
Reach Maximum Happiness in a Large Settlement
Placed A Grenade Or Mine While Pickpocketing
Collect 20 Vault-Tec Bobbleheads
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
Collect all issues of "The Islander's Almanac" magazine
Unlock 3 Far Harbor Workshop Locations
Complete the quest "Close to Home"
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"
Cook One of the New Far Harbor Recipes
Complete the quest "Far From Home"
Defeat 30 Far Harbor Sea Creatures
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.
Become Overseer
Unlock all Vault 88 build areas
Equip Vault 88 suit and Pip-Boy on a settler
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