Here is the full list of all 23 Duck Season PC achievements.
Set the table for dinner
Beat All Cartridge Games
Survive the zombie attack
Dog
Cannon Ending
Shoot all the cattails in game world
Don't shoot the dog in a playthrough
A better game
Shot the sun with the golden shell
Its over, you lose
Shoot the sitting duck in the game world
Platoon ending
Watch all the VHS tapes
Inspect the globe
Use the Kid Wizard Book
Stuck forever
Tried to get Mom's attention
Kill two ducks with one shot
Shoot the dog more than once in a playthrough
Kill 100 Ducks
Flip the sign in the game world
Throw something out the window
What time is it really?