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