Full list of all 30 The Dark Pictures Anthology: Little Hope achievements. It takes around 20-25 hours to unlock all of the achievements on Windows.
Maximized Angela and John's Relationship
Andrew has a good relationship with all characters
No-one survived
Everyone was saved
Saved Mary
Rational was one of top two traits for John
Amiable was one of top two traits for Daniel
Compassionate was one of top two traits for Andrew
Maximized Daniel and Taylor's Relationship
Understanding was one of top two traits for Angela
Saved Angela
Finished Movie Night
Chose all of the Heart decisions
Everyone died at the ruined house
Andrew was saved from himself
Headstrong was one of top two traits for Taylor
Chose all of the Head decisions
Completed the Solo Story
Saved Andrew
Found all family secrets
Found all witchcraft secrets
Found all Pictures
Saved John
Saved Daniel
Found all of the black framed Pictures
Defeated Taylor's demons
Saved Taylor
Found all of the white framed Pictures
Completed 5 combat events in succession
Completed the prologue