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