Kill one enemy.
Call 10 waves early.
Build 30 towers.
Kill 500 enemies.
Use Rain of Fire 5 times in a single stage.
Upgrade all basic tower types to level 3.
Earn 15 stars.
Open 5 information cards.
Earn 30 stars.
Defeat The Juggernaut.
Build 100 towers.
Kill 2.500 enemies.
Kill 100 enemies with meteor showers.
Change soldiers' rally point 200 times.
Earn 45 stars.
Build 150 towers.
Kill 10.000 enemies.
Have your soldiers regenerate 50.000 life.
Train 1.000 soldiers.
Send 1.000 soldiers to their deaths.
Call all waves early in a single mission.
Sell 30 Towers
Sell 5 towers in a single mission.
Call a wave within 3 seconds of the icon showing up.
Recruit max elves at The Silveroak Outpost.
Free the sasquatch on the Icewind Pass.
Catch a fish.
Complete The Citadel with at least 3 surviving imperial guards.
Build all 8 tower specializations.
Snipe 50 enemies.
Kill 50 enemies by poison damage.
Hold 500 or more enemies with Wrath of the Forest.
Disintegrate 50 or more enemies.
Teleport 250 or more enemies.
Polymorph 50 enemies into sheeps.
Summon 5 rock elementals in any one stage.
Throw 500 or more axes!.
Have a single barbarian kill 10 enemies.
Have your Paladins heal a total of 7.000 life.
Have your Paladins perform 100 Holy Strikes.
Shoot 100 Missiles.
Drop 1.000 or more bomblets with the cluster bomb.
Build 4 Tesla towers in any stage.
Kill 300 enemies with electricity.
Kill 10 or more sheep with your hands!
Help fredo escape.
Defeat Sarelgaz and its minions.
Defeat Gul'Thak and its minions.
Defeat Greenmuck and its minions.
Train a hero up to level 5.
Train a hero up to max level.
Do not let The Kingpin escape.
Defeat 10 Troll Pathfinders while they're treading on ice.
Find the elusive acorn!
Find the 5 legendary lost Ice-shrooms.
Defeat Ulguk-Hai the Troll Warlord.
Have your soldiers survive the explosion of 300 demons.
Defeat 9 legions before they replicate.
Defeat Moloch the Demon Overlord.
Defeat Myconid, the Rotten Fungus.
Kill 25 Shrooms without them poisoning your soldiers.
Have your Elves deal 10000 points of damage.
Kill 15 Wererats before they sicken any soldier.
Capture the attention of the mysterious crow.
Discover the hidden monster under water.
Find the Ninja Master Rat.
Defeat Lord Blackburn to avoid war between kingdoms.
Fire the sunray 20 times.
Complete the Campaign in Normal difficulty.
Complete all Heroic stages.
Complete all Iron stages.
Complete the campaign in Veteran mode.