Fort Defense achievements

Level completed with last remaining life

One spell improved to maximum level

Level failed 3 times in a row

All episode levels completed with 3 stars

All improvements purchased on a single tower

200 spells cast

Level completed without using more than 5 towers

Only one enemy ship attacked the outpost gates during the level

1000 ships sunk

Earn 120 stars

Get a magical ability to the maximum level

Buy all upgrades for one cannon