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