Here is the full list of all 37 Ori and the Will of the Wisps achievements. It takes around 30-35 hours to unlock all of the achievements on Windows.
Defeat Mora Without Taking any Damage
Complete the Game in Under 4 Hours
Beat the Game Without Equipping a Shard
Beat the Game Without Spending any Spirit Light
Avoid Touching any Corrupted Water
Complete Hard Mode
Complete the Game without Dying
Find all Collectibles
Complete all Spirit Trials
Upgrade all Shards
Defeat 3 Enemies with a Single Spike
Buy all Maps from Lupo
Max out Energy
Complete all Wellspring Glades Projects
Complete every Side Quest
Complete the Trade Sequence Quest
Upgrade all Abilities
Max out Life
Complete the Game
Defeat Shriek
Defeat the Willow Stone
Unlock all Abilities
Escape the Ruins
Unlock all Shards
Escape the Avalanche
Fend off Kwolok
Defeat Kwolok in Under 2 Minutes
Upgrade all Shard Slots
Complete all Spirit Shrines
Fend off Mora
Defeat 5 Enemies Without Touching the Ground
Clear the Watermill
Reach the Wellspring Glades
Juggle 3 or More Projectiles in the Air for Over 5 Seconds
Defeat the Horn Beetle
Defeat 10 Enemies using Environmental Hazards
Fend off Howl