Here is the full list of all 20 Kholat achievements. It takes around 8-10 hours to unlock all of the achievements on Windows.
You've survived!
You've unlocked the real ending.
You've reached the tent.
You've collected all journal pages.
You've unlocked all safe spots.
You've collected a note in the throne area.
You've collected all articles.
You've collected all reports.
You've explored the cave.
You've collected a note in the cave area.
You've collected a note in the burned forest area.
You've collected a note in the tree area.
You've collected a note in the hunters cabin area.
You've lost the chase.
You've collected a note in the altar area.
You've collected a note in the radar station area.
You've unlocked the incident in the bunker.
You've collected a note in the church area.
You've encountered the anomaly.
You've collected a note in the circle area.