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.
Beat the Game Without Equipping a Shard
Beat the Game Without Spending any Spirit Light
Complete the Game in Under 4 Hours
Buy all Maps from Lupo
Complete the Game without Dying
Upgrade all Shards
Upgrade all Abilities
Defeat Mora Without Taking any Damage
Avoid Touching any Corrupted Water
Complete the Game
Complete Hard Mode
Max out Life
Max out Energy
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
Unlock all Abilities
Upgrade all Shard Slots
Unlock all Shards
Complete all Spirit Shrines
Find all Collectibles
Complete the Trade Sequence Quest
Complete every Side Quest
Complete all Wellspring Glades Projects
Complete all Spirit Trials
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 3 Enemies with a Single Spike
Defeat 10 Enemies using Environmental Hazards