Full list of all 56 The Long Dark achievements worth 1,215 gamerscore. It takes around 100-120 hours to unlock all of the achievements in the base game.
The base game contains 40 achievements worth 1,000 Gamerscore, and there are 2 DLC packs containing 16 achievements worth 215 Gamerscore.
Survive 1 day in a single Survival Mode game.
Survive 10 days in a single Survival Mode game.
Survive 50 days in a single Survival Mode game.
Visit every interior location in both Mystery Lake and Coastal Highway (single game).
Harvest 10 Complete Deer Carcasses (single game).
Survive an entire Night outside (single game).
Survive 3 consecutive Nights outside (single game).
Survive the first 50 days without firing any firearms (single game).
Survive the first 25 days without killing anything (single game).
Sleep in a Bearskin Bedroll while wearing a Wolfskin Coat, Deerskin Boots, and Rabbitskin Mittens.
Catch a fish weighing over 5kg (11 lbs).
Survive 25 consecutive full days only consuming calories harvested from wild plants and animals.
Heal yourself using all types of natural medicines (single game).
Harvest 25 of each kind of plant (single game).
Survive 100 days in a single Survival Mode game.
Survive 500 days in a single Survival Mode game.
Stun a rabbit with a rock from over 25 meters (80 feet) away.
Get all skills to level 5 in a single Survival Mode game.
Survive one day on Interloper difficulty.
Keep calorie store above zero for 10 days.
Map all named locations in Survival Mode.
Fill all clothing slots with 100% condition gear.
Complete all Research books.
Climb to the top of Timberwolf Mountain.
Craft a full set of improvised Tools.
Keep a campfire burning for 3 days.
Escape the ravine after your crash.
Make your way to Milton.
Prepare Grey Mother for Winter.
Complete Lily's Story.
Leave Milton. Complete Episode One.
Bring Jeremiah back from near death.
Survive the first Aurora event.
Complete Jeremiah's Survival School.
Kill the Old Bear.
Leave Mystery Lake. Complete Episode Two.
Open all Safety Deposit boxes in Milton.
Find all Forest Talker caches.
Find all hidden caches in Episode One and Episode Two.
Complete every Challenge.
Find Medicine for the Warden.
Sabotage the Locking Mechanism.
Locate the Detonators.
Turn the tables on Mathis.
Escape Blackrock and Complete Episode Four.
Collect all four bloody pages from the Blackrock Archives.
Learn the truth behind all three Blackrock rumours.
Uncover the latest Forest Talker Plans.
Get to Thomson's Crossing.
Enter the Crash Site.
Rescue all three lost Survivors and stock the Hall with supplies.
Leave Pleasant Valley behind. Complete Episode Three.
Investigate all four mysterious local legends.
Collect all six Notes with details on Forest Talker activity in Pleasant Valley.
Defeat your first Timberwolf pack.