Full list of all 24 Mirt: Tales of the Cold Land achievements. It takes around 0-1 hour to unlock all of the achievements in the base game on Windows.
The base game contains 20 achievements, and there is 1 DLC pack containing 4 achievements.
Collect all the pages in Chapter 1
Visit the Moon Cafe
Complete Chapter 1
Stay in the Campus
Don't Escape
Open your Eyes
Sacrifice Yourself
Choose Oblivion
Betray Taro
Trust Taro
Choose the Dark Side
Lose Veronika
True Ending
Save Veronika
Choose the Future
Get All the Endings
Read by Shadows
Meet Paul
Save Grin
Choose the Present
Break up a couple
Stay out of the way
Complete Chapter 2
Collect all the diary pages