Kill one enemy.
Build up the towers in all places in 3 different missions.
Kill 300 enemies.
Build 5 maximum upgraded towers of one kind on one mission.
Kill 5000 enemies.
Build one-type towers in a single mission.
Build 50 towers.
Build all kinds of maximum upgraded towers.
Build 250 towers.
Sell one tower.
Restore towers 300 times.
Kill 30 enemies with "miner" cast.
Do not let the enemy attack the main base in a single mission.
Use "paratroopers" cast only in a single mission.
Open 5 enemy information cards.
Call out all the waves in advance in a single mission.
Restore towers 100 times.
Restore towers 25 times.
Sell 30 towers.
Use "miner" cast only in a single mission.
Sell 7 towers in a single mission.
Complete 6 missions in casual difficulty level.
Call out 30 waves early.
Complete 6 missions in normal difficulty level.
Earn 15 bullets.
Complete 6 missions in veteran difficulty level.
Earn all bullets.
Earn 30 bullets.
Kill 250 enemies with the artillery.
Kill 250 enemies with sniper tower.
Complete any mission without machine gun and grenadiers.
Kill 350 enemies with Homing missiles.
Complete any mission without Barracks and Watchtowers.
Kill 500 enemies with the Mortar tower.
Kill 10000 units during the whole game.
Kill 150 enemies with Barrack units.
Play a game for 10 hours in summary.
Kill 100 enemies with the help of a hero.
Kill 1000 enemies with the help of a hero.
Kill 3000 enemies with the help of a hero.
Pass any mission without restoring towers.
Complete a mission without using casts.
Complete any mission without using hero's cast.
Earn all medals for one of the heroes.
Complete all campaign missions.
Complete any mission without hero dying.
Upgrade your base to maximum level.
Kill 250 enemies with Flamethrower tower.
Restart same mission 3 times.
Buy 1 soldier in an Entrenchment.
Repair the mini-towers 10 times.
Kill 300 enemies with the Rockets power.
Kill 50 enemies with the Rifle power.
Stupefy 100 enemies with the Potion power.
Complete mission with 10% or less of health of the main base.
Achieve 2 Level up of a hero.
A hero died 10 times.
A hero died 25 times.
A hero died 50 times.
The enemy killed 10 Barracks units.
The enemy killed 50 Barracks units.
The enemy killed 100 Barracks units.
Unlock all towers.