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