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