Here is the full list of all 57 Ori and the Blind Forest: Definitive Edition achievements worth 1,250 gamerscore.
Found all secrets
Killed 5 enemies using Charge Dash
Killed 3 enemies without touching the ground
Killed 50 enemies with Light Burst
Visited 100% of the map
Saved at every Spirit Portal
Juggled a rock 5 times without it hitting the ground
Collected all Health Cells
Collected all Energy Cells
Earned all Combat Skills in the Ability Tree
Earned all Skills in the Ability Tree
Found the lost corridor in the Misty Woods
Uncovered the mysteries of Naru
Killed 5 enemies with Charge Jump
Bashed off enemies 10 times in a row without touching the ground
Earned all Utility Skills in the Ability Tree
Activated 3 torches using Light Burst
Restored all Map Stones
Escaped the Boulder in Black Root Burrows
Completed the game
Reunited with Naru
Restored the Element of Warmth
Entered Mt. Horu
Obtained the Sunstone
Found 50% of all secrets
Escaped Kuro
Restored the winds of Nibel
Killed 50 enemies with Stomp
Cleared the Misty Woods
Tricked 5 enemies into killing another enemy
Earned all Efficiency Skills in the Ability Tree
Collected 200 Energy Shards
Killed 100 enemies with Charge Flame
Killed 25 enemies using Bash to reflect projectiles
Created 50 Soul Links
Killed 500 enemies with Spirit Flame
Restored 50% of all Map Stones
Escaped the rising waters of the Ginso Tree
Restored the heart of the Ginso Tree
Double Jumped 5 times consecutively without touching the ground
Entered the Ginso Tree
Rescued Gumo
Caused an enemy to destroy itself
Crushed a Ram with a Stomper
Killed 4 enemies simultaneously using Charge Flame.
Discovered Gumo
Opened 5 shortcuts using the Charge Flame
Met the Spirit Tree
Used your first ability point
Restored your first Map Stone
Found your first secret
Completed the Prologue
Finish the game in under 3 hours
Complete whole game without dying
Complete the whole game without using an Ability Point
Complete the game on Hard Difficulty
Complete the game on One Life Difficulty