Zombie Tower Defense 4 ObjectUse your towers to kill the advancing zombies before they reach the end of the path. You will lose one life for each zombie that escapes. Game PlayKill the the zombies by purchasing towers. If the health of a zombie reaches zero the zombie will die, and be removed from the board. Earning moneyEarn money by killing zombies. Earn an extra bonus when you advance to the next level. You need money to build your arsenal of towers. You will earn 10 interest on your money at the beginning of each level. Purchasing a towerPurchase a tower by clicking the Tower' button at the top left corner, then click on the tower you want to purchase. To place the tower, click the desired location on the grass. Towers cannot be placed directly on the path, or overlapping other towers. You cannot move a tower once it has been placed. The tower's shooting range is outlined by a blue transparent circle. The tower will automatically aim and shoot when a zombie lumbers into its range. Upgrading your towersYou can upgrade your towers at anytime. To upgrade, first click on an existing tower, then click the 'upgrade' button in the dialog box. The tower will be upgraded immediately, and the money will be deducted from your account. Selling your towersYou can sell towers to make money, or to clear space for new towers. To sell, first click on an existing tower, then click the 'sell' button in the dialog box. Types of TowersEach tower has different strengths, weaknesses and abilities. Pistol Tower - A basic, inexpensive tower. It deals low damage and has a slow firing speed. However at its highest level, it has the farthest range available and deals considerable damage for the cost. Bomb Tower - This tower deals splash damage. That means that the zombies surrounding the point of impact will receive 1/3 of the towers damage. This tower works well when paired with the freezing tower, which helps to push the zomb It's Brain Eating Time! Build towers to navigate 50 epic levels to stop the zombie scum once and for all. Sit back, relax and destroy the zombies as they attempt to make their way through the maze. See if you can save up and purchase the ultimate in towers, the Missile Tower!