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