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