The First Defense
Not unlocked yetFinish Chapter 1
Out Of The Mud
Not unlocked yetFinish Chapter 2
Freezing Struggle
Not unlocked yetFinish Chapter 3
Heat of Battle
Not unlocked yetFinish Chapter 4
Captain's Chosen
Not unlocked yetDeploy each unit at least once
Initial Fortifications
Not unlocked yetAcquire one upgrade for each unit
Elite Captain
Not unlocked yetUpgrade Phoebe to the max
Fully Automated
Not unlocked yetUpgrade Turret to the max
Crystal Paladins
Not unlocked yetUpgrade Soldier to the max
Bullseye
Not unlocked yetUpgrade Archer to the max
Not So Fragile
Not unlocked yetUpgrade Fortress to the max
Full Arsenal
Not unlocked yetAcquire all upgrades
Tactician
Not unlocked yetWin a stage without attacking with Phoebe
No Machines Allowed
Not unlocked yetWin a stage without building any Turrets (except in Chapter 1)
Where's the Backup?
Not unlocked yetWin a stage without deploying any Soldiers (except in Chapter 1)
Lacking Cover Fire
Not unlocked yetWin a stage without deploying any Archers (except in Chapter 1)
Unshattered
Not unlocked yetWin a stage with full fortress health (except in Chapter 1)
Crystal Clear
Not unlocked yetObtain all other achievements. Congratulations, captain!