Tower Defenders challenges your tactical mind as you defend against endless waves of undead Vikings storming your bastion. Strategically deploy archer towers, catapults, and magic spires to shred the invading hordes. Use gold from defeated enemies to upgrade tower firepower, range, and special abilities like poison arrows or ice storms. Every two levels, select from three powerful cards to enhance your arsenal, such as summoning ally spirits or creating barriers. Balance aggressive offense with robust defense to survive intensifying assaults. Earn gems for permanent boosts. Hint: Position towers for overlapping fire lanes and anticipate boss waves. Click to place and upgrade for victory in this gripping tower defense saga!