Here is the full list of all 24 Crime Secrets: Crimson Lily achievements. It takes around 2-3 hours to unlock all of the achievements on Windows.
Find all nine Hidden Snowflake Symbols.
Make an antidote.
Turn on the fire alarm.
Find all the Origami
Solve all Detective Mode scenes
Chill something out. Literally.
Release from bonds.
Make some hot drink.
Set something on fire.
Finish all hidden object scenes without using Hint.
Make a map.
Find a new hobby.
View three cutscenes without using Skip
Find a hidden passage.
Solve three puzzles without using Skip.
Find what’s "hidden."
Finish one hidden object scene without using Hint.
Extinguish a fire
Launch a firework
Solve your first Detective Mode scene
Find first Hidden Snowflake Symbol
Smash some ice.
Solve a puzzle without using Skip.
Find the first Origami piece