Full list of all 39 LEGO The Hobbit achievements worth 1,000 gamerscore. It takes around 40-50 hours to unlock all of the achievements on Xbox One.
Achieved 100% completion
Completed all the quests in Middle-earth
Collected all characters
Forged all the Mithril Treasure Items
Forged all the Perfect Mithril Treasure Items
Collected all Mithril Bricks
Collected all Schematics
Collected all Minikits
Collected all Treasure Items in levels
Obtained all Master Burglar titles
Collected 10,000,000,000 studs
Played a level in co-op
Equipped yourself with Dazzle Wig, Mithril Rhythm Stick and Mithril Dance Boots.
Completed the Bonus Level
Transformed to Beorn's bear form.
Completed "Inside Information"
Completed "On the Doorstep"
Completed "The Necromancer"
Completed "Looking for Proof"
Created a custom character.
Completed "A Warm Welcome"
Completed "Barrels Out of Bond"
Completed "Out of the Frying Pan…"
Completed "Flies and Spiders"
Completed "Queer Lodgings"
Completed "Goblin Town"
Obtained 150,000 studs from Instruction Builds bonuses
Completed "Over Hill and Under Hill"
Completed "The Troll Hoard"
Completed "Roast Mutton"
Completed the mining game perfectly 50 times
Equipped Thorin with the Mithril Mushroom Crown
Used Gandalf's startle ability to dazzle 50 enemies
Used every combination of Dwarves for Buddy-Up attacks
Used 50 Buddy-Up attacks
Collected 99 of any loot
Completed "Azog the Defiler"
Completed "An Unexpected Party"
Completed "Greatest Kingdom in Middle-earth"