Full list of all 115 Terraria achievements. It takes around 200 hours to unlock all of the achievements in the base game on Windows.
The base game contains 88 achievements, and there are 3 DLC packs containing 27 achievements.
Have all possible town NPCs living in your world.
Triumph over the frost legion, a festive family of maniacal snowman mobsters.
Spend over 1 gold being treated by the nurse.
Defeat every type of slime there is!
Kill a nymph.
Kill Tim.
Kill Doctor Bones.
Kill pinky.
Survive a long fall with just a sliver of health remaining.
Fire a rainbow gun while riding on a unicorn.
Obtain a golden fishing rod.
Complete a grand total of 200 quests for the angler.
Command nine summoned minions simultaneously.
Fire a Bee Gun while wearing a full set of Bee Armor.
Equip a dye in every possible dye slot.
Attain maximum health and mana possible without accessories or buffs.
Obtain a rainbow rod.
Complete your 25th quest for the angler.
Complete your 10th quest for the angler.
Complete your 50th quest for the angler.
Breach the impenetrable walls of the jungle temple.
Build a house in a mushroom biome and have Truffle move in.
Build or encounter a glowing mushroom field above the surface.
Obtain a Terra Blade, forged from the finest blades of light and darkness.
Destroy a total of 10,000 tiles.
Consume a life fruit, which grows in the thick of subterranean jungle grass.
Kill the groom.
Survive a solar eclipse, a day darker than night filled with creatures of horror.
Defeat an enemy by running it over with a minecart.
Mine a powerful ore that has been newly blessed upon your world.
Complete your 1st quest for the angler.
Reach the 15th wave of a frost moon, where the festive season quickly degrades into madness.
Smash a demon or crimson altar with a powerful, holy hammer.
Triumph over a martian invasion, when beings from out of this world come to scramble your brains and probe you in uncomfortable places.
Defeat every boss in Terraria.
Defeat Duke Fishron, mutant terror of the sea.
Reach the 15th wave of a pumpkin moon, where evil lurks among the autumn harvest.
Obtain the Terrarian.
Defeat the Moon Lord.
Defeat the four celestial towers of the moon.
Defeat the Ancient Cultist, fanatical leader of the dungeon coven.
Throw a yoyo.
Survive a blood moon, a nocturnal event where the rivers run red and monsters swarm aplenty.
Unlock one of the dungeon's large, mysterious chests with a special key.
Obtain a rare treasure from a difficult monster in the dungeon.
Defeat Golem, the stone-faced ritualistic idol of the lihzahrd tribe.
Survive the slime rain, where gelatinous organisms fall from the sky in droves.
Defeat Plantera, the overgrown monstrosity of the jungle's depths.
Mine chlorophyte, an organic ore found deep among the thickest of flora.
Craft a drax or pickaxe axe using hallowed bars, and the souls of the three mechanical bosses.
Triumph over a pirate invasion, a group of pillagers from the sea out for your booty... and your life!
You can only go down from here!
Equip a pair of wings.
Craft a molten pickaxe using the hottest of materials.
Travel a total of 26.2 miles on foot.
Become a victim to a nasty underground trap.
Steal a key from dungeon's undead denizens, and unlock one of their precious golden chests.
Defeat the Eater of Worlds, a massive worm whom dwells in the corruption.
Do battle against the Twins, the Destroyer, and Skeletron Prime simultaneously and emerge victorious.
Defeat the three nocturnal mechanical menaces: the Twins, the Destroyer, and Skeletron Prime.
Equip armor or vanity clothing in all three social slots.
Unleash the ancient spirits of light and darkness across your world, enabling much stronger foes and showering the world with dazzling treasures (and rainbows!).
Defeat the Wall of Flesh, the master and core of the world who arises after a great, burning sacrifice.
The only way is up!
Stumble into a spider cavern in the underground.
Triumph over a goblin invasion, a ragtag regiment of crude, barbaric, pointy-eared warriors and their shadowflame sorcerers.
Defeat Skeletron, the cursed guardian of the dungeon.
Equip a mount.
Defeat King Slime, the lord of all things slimy.
Defeat the Queen Bee, the matriarch of the jungle hives.
Discover a large bee's hive deep in the jungle.
Obtain a minishark.
Defeat the Brain of Cthuhlu, an enourmous demon brain which haunts the creeping crimson.
Using explosives or your trusty hammer, smash a Shadow Orb or Crimson Heart in the evil parts of your world.
Equip your first grappling hook.
Craft a mana crystal out of fallen stars, and consume it.
Defeat the Eye of Cthulhu, an ocular menace who only appears at night.
Discover a golden chest underground and take a peek at its contents.
Obtain a boss-summoning item.
Discover and smash your first heart crystal underground.
Spelunk deep enough to reach the molten underworld.
Mine your first nugget of ore with a pickaxe.
Equip armor in all three armor slots: head, chest, and feet.
Obtain an anvil made from iron or lead.
Survive your character's first full night.
Build a house suitable enough for your first town NPC, such as the guide, to move into.
Obtain your first hammer via crafting or otherwise.
Chop down your first tree.
Craft your first work bench.
Repel the strongest forces the Old One's Army can muster.
Enter a misty graveyard filled with the surly dead.
Obtain the Zenith, the culmination of a journey forged into the ultimate sword.
Drop a lure in a pool of lava for a pre-fried haul!
Defeat the Empress of Light, responsible for all those flashy lights and glitter.
Defeat the Dreadnautilus, murderous mollusk lurking beneath the surface of the sanguine seas.
Deliver headpats to the town pet.
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.
Meet with a tenant who's as happy as they possibly can be!
What you're celebrating doesn't matter, just throw a party already!
Trick a gnome into turning into stone!
You were so preoccupied with whether or not you could open the chest that you didn't stop to think if you should.
Encounter a fairy.
Fly a kite on a windy day.
Some very special seeds can lead to unique and rewarding experiences. Can you find one?
Shimmer an item into another item. What other transmutations can you find?
Find all of the Slime Pets and have them move in!
Completely purify all Corruption, Crimson, and Hallow from your world, until the Dryad is satisfied!
Obtain the Cell Phone. You'll never leave home without it again.
Obtain the Ankh Shield, the finest protection from unpleasant maladies and ailments.
Delay death from drowning by drinking water. It doesn't make much sense, but you did what you had to do.
Obtain Golden Delight, the highest quality meal made from the highest quality . . . ingredients.
Defeat Deerclops, the chilly one-eyed monstrosity from a foreign land.
Fly a Kwad Racer into outer space.
Invoked the wrath of the God of Torches, and survived long enough to earn its blessing.