Complete the following tasks to unlock the corresponding achievement. After all are unlocked, a code will be displayed on the "Achievement" menu, which can be submitted for a chance to win a prize from the game's developer.

Achievement	How to unlock
4 the Horde!	Control 50 units at the same time.
At First I was Afraid	Survive for over 30 minutes in the Castle Defense minigame.
Blotting Out the Sun	Finish Chinese campaign level 7 with over 15 Rocketeers alive.
Bull in a China Shop	Cast a Boulder spell which doesn't hit a single unit.
Can't Touch This	Prevent a unit dying from a Lightning spell with the Shield spell.
Close Call	Win a mission in which the enemy attacked your base.
Cooking by the Book	Finish the Viking campaign.
Dying on the Edge	Sacrifice a unit when their remaining health is less than 5%.
Fort Knox'd	Kill the Giant in Aztec campaign level 2 before it reaches your gold mines.
Fourtification	Finish Viking campaign level 7 without losing any towers.
Happy New Year!	Kill 3 enemies with a single rocket that appears after a Rocketeer dies.
I'm no Kung, Fool!	Finish the Chinese campaign.
Keep Your Lousy Army	Finish Aztec campaign level 10 without letting any Vikings reach your base.
King of the Stone Age	Kill all Vikings in the Boulder minigame without killing any Aztecs.
Lacking Balls	Finish Aztec campaign level 8 without using the Boulder spell.
Lost Vikings	Finish Chinese campaign level 8 without killing any Berserkers.
Pity the Fool!	Finish Viking campaign level 10 without letting any enemies reach your base.
Planet of the Ninja Apes	Finish Chinese campaign level 3 without letting any Ninja Apes die.
Reverse Psychology	Use Mind Control on a unit which the enemy Mind Controlled away from you less than 2 seconds ago.
RickRolled	Destroy the enemy base with a Boulder spell.
Son of Norris	Kill 46 enemy units with a single unit.
Techno Viking Dances Away	Reach maximum distance in the Berserker Run minigame.
Uncontrolled Demolition	Destroy a tower which is in the process of being built with the Rage spell.
V for Veggies	Finish the Aztec campaign.
Where are the Kangaroos?	Finish Viking campaign level 4 by destroying the enemy base.