Here is the full list of all 30 The Deer God trophies - there are 12 bronze, 12 silver, 5 gold and 1 platinum.
Finish the game with all trophies
Collect 25 eggs
Find 10 turnips
Finished the game and became a human
Don't kill any creatures for 15 days
Run for 50,000 meters
Collect 10 skunk cabbages
Find 10 treasure boxes
Kill 10 cows
Use 3 items at the same time
Become 3 different animals
Get full dark karma bar
Kill 10 deer
Ride a tortoise through spikes
Acquire all powers
Survive for 50 days
Beat all bosses
Get full light karma bar
Find 10 deer heads
Freeze 5 hunters
Ride a train
Kill 5 foxes with fire
Finished the game and became an Elder
Collect all relics
Kill the eagle
Hatch 3 falcons
Raise 5 babies
Eat 25 mushrooms
Eat 100 plants in one game
Become an adult