Here is the full list of all 30 Dust: An Elysian Tail achievements. It takes around 20-25 hours to unlock all of the achievements on Windows.
Complete 20 Sidequests
Complete all Fale Quests
Hang out with Twelve Friends in the Sanctuary
Bug Matti
Complete 10 Sidequests
Fulfill Bopo’s wish for snow
Complete the Game on Tough or Hardcore setting
Successfully complete a 1000+ hit combo
Reign chaos by putting poison ivy into Gianni's laundry
Meet Haley
Defeat General Gaius
Destroy every enemy Cannon
Defeat Baron Kane
Complete 5 Sidequests
Earn a Four-Star Rating in any Challenge Arena
Defeat Lady Tethys
Kill an enemy with the slide attack
Opt out of putting poison ivy into Gianni's laundry
Unlock a Cage and Rescue a Friend
Craft an item from a blueprint
Defeat Fuse
Kill 500 Enemies
Simultaneously Kill 6 Enemies with a Single Bomb
Successfully complete a 200+ hit combo
Use the DUST STORM on Fidget's Projectiles
Successfully Parry with less than 10% health remaining
Level Up by Assigning Skill Gems
Unlock a Treasure Chest
Pick Up an Ability Orb
Earn a Four-Star Rating in EVERY Challenge Arena