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