Here is the full list of all 35 Kona achievements. It takes around 12-15 hours to unlock all of the achievements on Windows.
Shoot the Wendigo with the rifle.
Take all pictures needed for the investigation.
Complete the game.
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.
Find all evidence tied to Hamilton's death.
Find Hamilton's killer.
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.
Get rid of the ice wall.
Clear the boulders near the Lachances' house.
Shoot a flare at night.
Find the rifle.
Complete Réjean Blouin's vision.
Repair the snowmobile.
Find all talismans.
Send a radio message with a big antenna.
Activate the spaceship.
Complete Jean-Guy Lamothe's vision.
Find three talismans.
Complete Gilles Lachance's vision.
Collect the 10 letters from Martin Blais' treasure hunt.
Find a winter coat to keep you warm.
Light a dark area with the lantern.
Get rid of wolves without killing.
Complete Gisèle Lachance's vision.
Take a picture needed for the investigation.
Reach the General Store.
In typical Canadian fashion, Carl left $10 for the cutoff chain.