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