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