Kill one enemy.
Call 10 waves early.
Kill 500 enemies.
Build 30 towers.
Use Rain of Fire 5 times in a single stage.
Upgrade all basic tower types to level 3.
Open 5 information cards.
Earn 15 stars.
Earn 30 stars.
Defeat The Juggernaut.
Build 100 towers.
Kill 2.500 enemies.
Kill 100 enemies with meteor showers.
Earn 45 stars.
Change soldiers' rally point 200 times.
Build 150 towers.
Have your soldiers regenerate 50.000 life.
Kill 10.000 enemies.
Train 1.000 soldiers.
Send 1.000 soldiers to their deaths.
Sell 30 Towers.
Call all waves early in a single mission.
Sell 5 towers in a single mission.
Call a wave within 3 seconds of the icon showing up.
Free the sasquatch on the Icewind Pass.
Recruit max elves at The Silveroak Outpost.
Catch a fish.
Complete The Citadel with at least 3 imperial guards.
Snipe 50 enemies.
Build all 8 tower specializations.
Kill 50 enemies by poison damage.
Hold 500 or more enemies with Wrath of the Forest.
Teleport 250 or more enemies.
Disintegrate 50 or more enemies.
Polymorph 50 enemies into sheeps.
Summon 5 rock elementals in any one stage.
Have a single barbarian kill 10 enemies.
Throw 500 or more axes.
Have your Paladins heal a total of 7.000 life.
Have your Paladins perform 100 Holy Strikes.
Drop 1.000 or more bomblets.
Shoot 100 Missiles.
Build 4 Tesla towers in any stage.
Kill 300 enemies with electricity.
Complete the Campaign in Normal difficulty.
Kill 10 or more sheep with your hands!
Complete all Heroic stages.
Complete all Iron stages.
Defeat Sarelgaz and its minions.
Help Fredo escape.
Defeat Gul'Thak and its minions.
Defeat Greenmuck and its minions.
Find the elusive acorn!
Do not let The Kingpin escape.
Defeat 10 Troll Pathfinders on ice.
Find the 5 legendary lost Ice-shrooms.
Complete the Campaign in Veteran difficulty.
Defeat Ulguk-Hai the Troll Warlord.
Train a hero up to level 5.
Train a hero up to max level.
Have your soldiers survive 300 demon explosion.
Defeat 9 legions before they replicate.
Defeat Moloch the Demon Overlord.
Kill 25 Rotshrooms with no soldiers poisoned.
Have your Elves deal 10000 points of damage.
Defeat Myconid, the Rotten Fungus.
Capture the attention of the mysterious crow.
Defeat Lord Blackburn to avoid war between kingdoms.
Discover the hidden monster under water.
Find the Ninja Master Rat.
Kill 15 Wererats before they sicken any soldier.
Fire the sunray 20 times.