Here is the full list of all 35 Kona achievements. It takes around 12-15 hours to unlock all of the achievements on Windows.
Complete the game without drinking any alcohol.
Complete the game without using vehicles (past the Store).
Shoot the Wendigo with the rifle.
Take all pictures needed for the investigation.
Complete the game.
Complete the game without smoking any cigarettes.
Complete the game without firing any firearms shot.
Throw a steak at a strange creature.
Find all evidence tied to Hamilton's death.
Find Hamilton's killer.
Find all campfires in the wild.
End the unfinished chess games.
Find every house and cabin in the village.
Find all crossbow bolts.
Shoot a flare at night.
Find all documents.
Collect the 10 letters from Martin Blais' treasure hunt.
Get rid of the ice wall.
Clear the boulders near the Lachances' house.
Find the rifle.
Complete Réjean Blouin's vision.
Repair the snowmobile.
Send a radio message with a big antenna.
Activate the spaceship.
Complete Jean-Guy Lamothe's vision.
Find all talismans.
Find a winter coat to keep you warm.
Find three talismans.
Light a dark area with the lantern.
Get rid of wolves without killing.
In typical Canadian fashion, Carl left $10 for the cutoff chain.
Complete Gisèle Lachance's vision.
Complete Gilles Lachance's vision.
Take a picture needed for the investigation.
Reach the General Store.