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.
Get All the Endings
Open your Eyes
True Ending
Choose the Dark Side
Choose Oblivion
Sacrifice Yourself
Trust Taro
Lose Veronika
Save Veronika
Meet Paul
Don't Escape
Betray Taro
Choose the Present
Choose the Future
Read by Shadows
Save Grin
Collect all the pages in Chapter 1
Stay in the Campus
Complete Chapter 1
Visit the Moon Cafe
Complete Chapter 2
Break up a couple
Stay out of the way
Collect all the diary pages