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