Here is the full list of all 19 COLINA: Legacy achievements.
Start a new game
Complete the game without dying
Collect all of the notes in game
Collect all text items in game, notes + stone tablets
Solve all of the Sphinx's stashes
Defeat the Blue Fairy
Defeat the King of Thebes
Kill the Moonchild
Collect your first Puppet String
Collect all of the Orb shards
Free the Son of the Moon
Enter the Temple
The first death
Collect all of the Glyphs
Attain the Light Sword
Get out of the house
Watch all cutscenes
Find Valentina
Complete the game