Full list of all 56 The Long Dark achievements. It takes around 200 hours to unlock all of the achievements in the base game on Windows.
The base game contains 40 achievements, and there are 2 DLC packs containing 16 achievements.
Survive the first 25 days without killing anything (single game).
Survive the first 50 days without firing any firearms (single game).
Survive 25 consecutive full days only consuming calories harvested from wild plants and animals (single game).
Visit every interior location in both Mystery Lake and Coastal Highway (single game).
Keep a campfire burning for 3 days.
Harvest 25 of each kind of plant (single game).
Survive one day on Interloper difficulty.
Climb to the top of Timberwolf Mountain.
Survive 3 consecutive Nights outside (single game).
Survive 50 days in a single Survival Mode game.
Stun a rabbit with a rock from over 25 meters (80 feet) away.
Survive 10 days in a single Survival Mode game.
Keep calorie store above zero for 10 days.
Survive an entire Night outside (single game).
Fill all clothing slots with 100% condition gear.
Catch a fish weighing over 5kg (11 lbs).
Leave Mystery Lake. Complete Episode Two.
Complete all six Survival School objectives across Episodes One and Two.
Find all hidden caches in Episode One and Episode Two.
Find all Forest Talker caches.
Kill the Old Bear.
Survive the first Aurora event.
Bring Jeremiah back from near death.
Leave Milton. Complete Episode One.
Open all Safety Deposit boxes in Milton.
Heal yourself using all types of natural medicines (single game).
Complete Lily's Story.
Prepare Grey Mother for Winter.
Survive 1 day in a single Survival Mode game.
Make your way to Milton.
Escape the ravine after your crash.
Harvest 10 Complete Deer Carcasses (single game).
Sleep in a Bearskin Bedroll while wearing a Wolfskin Coat, Deerskin Boots, and Rabbitskin Mittens.
Survive 500 days in a single Survival Mode game.
Get all skills to level 5 in a single Survival Mode game.
Survive 100 days in a single Survival Mode game.
Map all named locations in Survival Mode.
Complete all Research books.
Craft a full set of improvised Tools.
Complete every Challenge.
Leave Pleasant Valley behind. Complete Episode Three.
Intercept the Radio transmission.
Collect all six Notes with details on Forest Talker activity in Pleasant Valley.
Rescue all three lost Survivors and stock the Hall with supplies.
Tall Tales
Enter the Crash Site.
Defeat your first Timberwolf pack.
Get to Thomson's Crossing.