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