Full list of all 39 Terraria achievements worth 1,290 gamerscore. It takes around 80-100 hours to unlock all of the achievements in the base game on Xbox One.
The base game contains 30 achievements worth 1,000 Gamerscore, and there are 3 DLC packs containing 9 achievements worth 290 Gamerscore.
That's put a feather in your cap!
You have triumphed over a goblin invasion!
The apprentice has become the Master.
The Twins were no trouble.
Skeletron Prime has been pulverised.
The ancient spirits of light and darkness have been unleashed!
The Mechanic would be proud.
You have survived your first full night!
Your first town NPC has made themselves at home!
Now you're dressed to impress!
Are you buff enough to take on a boss?
You've braved the Underworld and returned safely!
The only way is up!
All possible town NPCs are living in your world.
Attained maximum life and mana possible!
You can only go down from here!
Corruption has spread far and wide across your world!
You've asked the guide for help!
Complete all the quests from the guide.
Defeat every boss in Terraria.
Defeat every type of slime there is.
Allow your world to become Hallowed.
Dismantle the Destroyer.
Travel a total of 26.2 miles on foot.
Destroy a total of 10,000 tiles.
Find all the pets!
Craft 300 items at an anvil.
Smelt 10,000 bars of metal.
Collect all the armor sets.
Survive a blood moon, where the rivers run red and monsters swarm aplenty.
Defeat the Empress of Light, responsible for all those flashy lights and glitter.
Obtain the Zenith, the culmination of a journey forged into the ultimate sword.
You were so preoccupied with whether you could, that you didn't stop to think if you should.
Defeat Queen Slime, giving the coup-de-grace to the sovereign of all that jiggles.
Obtain the Terraspark Boots, forged from the finest boots of fire and ice.
Encounter a fairy.
Defeat Deerclops, the chilly one-eyed monstrosity from a foreign land.
Obtain Golden Delight, the highest quality meal made from the highest quality... ingredients.
Delay death from drowning by drinking water. It makes no sense, but you did what you had to do.