Goblin, skeleton and all manner of gnarly monstrosities have laid siege to your castle. Your only hope of defending yourself is with the power of math! If yo're smart enough and you're fast you'll be able to push back and destroy the waves of monster hordes!
Choose your difficulty level, then select your skill and the game in on! You will have to answer questions as fast as they pop up otherwise, the monsters will get the upper hand. Each right answer will vanquish another foe and after a set of five tasks, you'll be able to add a new hero to your team. Strike first, strike hard and then press ttack!