Here is the full list of all 18 Duck Game achievements.
Win a round in a 4 player match by converting all players to your team.
Break 10 draws.
Win a round while standing on a mine.
Play through a match that goes to 50 points.
Win 10 online matches.
Finish 50 whole games.
Play on 10 different custom maps.
Crush 50 ducks.
Spawn 1000 times.
Kill 1000 ducks with any one profile.
Spawn 100 times.
Get best trophy in all challenges.
Unlock the arcade basement.
Spend 15 minutes on fire with any one profile.
Kill 3 ducks at the same time with the Death Ray.