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