Here is the full list of all 29 Snares of Ruin achievements.
Complete Act 1
Complete Act 2
Complete the Game
Full points on the Sancras Park investigation.
Full points on the Bevin House investigation.
Full points on the Alvarado House investigation.
Done an impeccable job defending the docks in a shootout.
Full points on the Docks investigation.
Full points on the Pelados investigation.
Full points on the Day 7 investigation.
Full points on Evdokim's House investigation.
Complete the game with Athletics, Charisma, and Erudition all being above 7.
Complete the game with Athletics being above 10.
Complete the game with Charisma being above 10.
Complete the game with Erudition being above 10.
All 6 major female characters have survived until the end of the game.
Got intimate with Gwen.
Got intimate with Alzyra.
Got intimate with Miroslava
Completed the game with good rep for all the 6 major female characters.
Read all the interactable books in the Library.
Complete the game while under the effects of caffeine every day of the investigation.
Complete the game without having drunk caffeinated drinks on any day of the investigation (includes any breakfast meals too).
Find yourself in a pickle with three ladies at once.
Convinced the Mermen to set Elyssa free.
Solane's Ending.
The Council ending.
The Justice ending.
Found the Iconic Code.