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