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