There are 12 achievements worth a total of 200 points
Destroy at least one boss alien.
Earn at least one silver medal in any mission after The Awakening.
Fire the orbital laser.
Build at least one of every tower type and available upgrade.
Earn at least one gold medal in any mission after The Awakening.
Win a mission with the last remaining core less than 10 seconds away from the map exit.
Complete the Story mode in The Awakening campaign.
Earn at least a silver medal on all Story mode missions in The Awakening campaign.
Destroy 1000 aliens.
Earn at least a gold medal on all Story mode missions in The Awakening campaign.
Survive all 99 waves on any Grinder challenge mode.
Earn a gold medal on at least 40 Story or Challenge mode missions in any campaign.