Here is the full list of all 52 Skinwalker Hunt achievements.
Kill 10 enemies with a shotgun.
Kill possessed crow that is flying towards you.
Kill 30 boars.
Cook 30 pieces of meat.
Consume 10 healing plants.
Kill 3 snakes.
Kill skinwalker in the Chernobyl Forest level.
Kill 20 enemies with silenced rifle.
Craft a bear trap from parts of two broken bear traps.
Kill an owl.
Kill owl, snake, boar, wolf, bear and the deer.
Find weird looking mushroom in Chernobyl forest.
Hunt down 50 animals.
Find the radiation resistance kit.
Find and take 50 items.
Kill skinwalker in the Longwind Valley level.
Hunt down and kill skinwalker without dying.
Kill 5 deer.
Kill 5 boars.
Touch ancestor spirit.
Find a shotgun.
Deal damage to skinwalker with a bear trap.
Enter skinwalker cave in Longwind Valley.
Make 35 headshots.
Kill 5 wolves.
Kill 5 bears.
Locate 3 skinwalker footprints.
Kill 5 creatures using tomahawk.
Destroy 3 skinwalker totems.
Clean the old double-barreled shotgun using a gun cleaning kit.
Kill worshiper.
Deal damage to skinwalker.
Scare animals with a red flare 3 times.
Catch 4 fishes.
Find the weird looking skull in Longwind Valley.
Kill 5 skinwalkers.
Kill 30 deer.
Kill 30 bears.
Kill 30 wolves.
Hunt down skinwalker with "Hide my position on map" enabled.
Find and shoot the creepy nailhead doll in the Chernobyl Forest level.
Kill 10 owls.
Find the book of the dead.
Become ultimate hunter.