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