Creepy Creeps is a Tower Defence hybrid with unique gameplay. You can combine strategies by using not only towers but also bombs, traps and mines.
Stop the evil creeps stealing and kidnapping your planets workers by placing defenses and traps. However if this cannot stop them it is not to late! Destroy the creeps before they run forever and you may still have a chance to get your workers back. With 8 towers to unlock there are many different possible strategies to defeat the creeps!
As Always, Good Luck and Have Fun.