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