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