Here is the full list of all 21 Rock of Ages 3: Make & Break achievements.
Collect all the stars from the story campaign.
Complete all the Humpty Dumpty challenges.
Beat Poseidon in a race.
Defeat Moby Dick
Get a gold medal in all time trial levels.
Get a bronze medal in all time trial levels.
Get a silver medal in all time trial levels.
Earn the High King's medal by climbing up in the ranking system.
Earn the King's medal by climbing up in the ranking system.
Earn the Lord's medal by climbing up in the ranking system.
Earn the Knight's medal by climbing up in the ranking system.
Earn the Squire's medal by climbing up in the ranking system.
Win an online match of War.
Follow all of Napoleon’s directions in the level editor tutorial.
Rate a map from the Community levels.
Win an online match of Obstacle Race.
Defeat the Vitruvian Man.
Rescue the Dragon.
Land in the highest scoring hole in the Skee-Boulder ramp.
Win a match of Boulder Avalanche or War without letting the enemy touch your door.
Destroy the enemy boulder using the thundercloud.