Here is the full list of all 15 Oh Deer achievements.
Hunt your first player deer.
Deer win with 4 player deer remaining
Hunt the Hunter
Launch the game for the first time
Eat 100 mushrooms. Any effects yet?
Eat 20 mushrooms in one round
Eat 500 mushrooms. Save some for the rest of us, geez...
Make it to the Cabin after losing your Sanity.
Hunt 4-player deer in one round
Spot 100 deer with TrailCams
Hunt 100 player deer
Activate the SHOVE statue in the deep sea
Step on a landmine. o7
Get caught in a Beartrap. Watch your step!