Here is the full list of all 30 On My Own achievements.
Survive through all 4 seasons
Kill 5 animals with a bow
Catch 5 Fish
Catch 5 animals in snares or traps
Complete all journal entries for the Woodland Biome
Travel to the winter world
Equip a fox skin hat
Travel to all 4 biomes
Craft a bundle bow
Travel to 3 biomes
Travel to a different camp
Find a secret letter
Create a fire without matches or coals
Start a fire to stay warm during the night
Craft an item to aid in survival
Forge food from an edible plant
Chop down a tree
Chop 200 trees down
Kill 5 foxes
Survived a bear attack/encounter
Equip Jacket, Hat, and Backpack Upgrade
Complete all journal entries for the Woodland Lake Biome
Complete all journal entries for the Alpine Tundra Biome
Eat every edible food in the game
Craft every item in the game
Reached the summit of the Mountain Biome, completing the game
Equip the bear jacket
Encounter/survive an avalanche