Full list of all 35 Fallout Shelter achievements worth 1,000 gamerscore. It takes around 80-100 hours to unlock all of the achievements on Xbox One.
Successfully stopped 50 Raider Attacks
Completed 100 objectives
Completed 100 Quests
Leveled up a Dweller from level 1 to 50
Scrapped 500 items
Crafted an Outfit, a Weapon and a Theme
Completed 60 Quests
Collected all Fragments of 4 Theme Recipes
Upgraded 20 Rooms to Level 3
Successfully completed 50 Room Rushes
Collected all Fragments of a Theme Recipe
Changed the appearance of 10 Dwellers in the Barbershop
Crafted 10 Outfits
Built 1 of every room type
Completed 30 Quests
Collected 100 Stimpaks and 100 RadAway on Quests
Leveled up a dweller from Level 1 to 25
Made 25 Babies
Crafted 10 Weapons
Collected 20 Legendary Weapons
Collected 20 Legendary Outfits
Made 25 dialogue choices on Quests
Killed 500 enemies on Quests
Built 50 rooms
Completed 10 Quests
Killed 10 Quest Bosses
Leveled up a dweller from Level 1 to 10
Built 25 rooms
Collected 10,000 Caps
Merged 3 Water Rooms
Merged 3 Food Rooms
Merged 3 Power Rooms
Collected 1,000 Caps
Collect 20 Legendary Dwellers
Craft every Theme