Here is the full list of all 23 Die Young: Prologue achievements.
Complete the game without letting any Junkie die
Do not kill any person or animal (except for the Hammer Guy)
Complete the game without being spotted
Complete the game without being hit
Feed a dog
Craft 7 Deadly Arrows in a single playthrough
Complete the game without using Perception
Kill (or let others kill) anything that breathes
Kill th Huge Hammer Guy in less than 60 seconds
Craft all the craftable items in a single playthrough
Push all the buttons in the game in a single playthrough
Get drunk
Hit the button of a sliding gate with an arrow from a distance of 30 meters
Take the Unknown Drug
Find all documents in a single playthrough
Go past the Harbor through a secondary route
Perform 25 kills using fire in a single playthrough
Find the Ancient Idol
Kill the Huge Hammer Guy using a rock as a deathblow
Complete the game
Go past the Harbor through the main gate
Perform 20 headshots in a single playthrough
Exit the Sewers