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