Here is the full list of all 19 Rock of Ages achievements.
Win 10 online War games.
Win a War game using the Cube.
Score a direct hit on an enemy boulder with the Castlepult.
Find all the keys scattered throughout the levels.
Win a match without destroying any of your adversary's units.
Earn more than 7000 gold in one match.
Get a gold medal on all maps in Time Trial mode.
Beat the game in Story mode.
In SkeeBoulder, land your Boulder in the maximum multiplier.
Destroy a flying ship.
Destroy your adversary’s boulder.
Win a match with your gate unscathed.
Land a projectile on some TNT to produce a shockwave combo that hits your enemy.
Win a match using the Snowball boulder.
Hit the castle gate with the fireball powerup.
Complete the tutorial level and escape from the underworld.
Break off the second layer of your adversary’s boulder.
Win an online War game
Break off the first layer of your adversary’s boulder.