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