Here is the full list of all 30 The Deer God achievements.
Find 10 treasure boxes.
Eat 25 mushrooms.
Become 3 different animals.
Become an adult.
Raise 5 babies.
Eat 100 plants in one game.
Ride a train.
Beat all bosses.
Ride a tortoise through spikes.
Finish the game with all achievements.
Survive for 50 days.
Run for 50,000 meters.
Hatch 3 falcons.
Acquire all powers.
Get full light karma bar.
Kill the eagle.
Find 10 turnips.
Use 3 items at the same time.
Kill 10 cows.
Get full dark karma bar.
Kill 10 deer.
Collect 25 eggs.
Kill 5 foxes with fire.
Freeze 5 hunters.
Find 10 deer heads.
Collect all relics.
Collect 10 skunk cabbages.
Don't kill any creatures for 15 days.
Finished the game and became a human.
Finished the game and became an Elder.