The 1.4.1 Title update for Terraria has 15 achievements.
You were so preoccupied with whether or not you could open the chest that you didn't stop to think if you should.
Obtain the Zenith, the culmination of a journey forged into the ultimate sword.
Meet with a tenant who's as happy as they possibly can be!
Enter a misty graveyard filled with the surly dead.
Defeat the Empress of Light, responsible for all those flashy lights and glitter.
Fly a kite on a windy day.
Encounter a fairy.
Trick a gnome into turning into stone!
Defeat the Dreadnautilus, murderous mollusk lurking beneath the surface of the sanguine seas.
Repel the strongest forces the Old One's Army can muster.
Drop a lure in a pool of lava for a pre-fried haul!
Defeat Queen Slime, giving the coup-de-grace to the sovereign of all that jiggles.
Deliver headpats to the town pet.
What you're celebrating doesn't matter, just throw a party already!
Obtain the Terraspark Boots, forged from the finest boots of fire and ice.