Survivor Challenge TD - is a Tower Defense game where you manage a single tower and add upgrades to it. Buy abilities, enhance upgrades, and defeat the boss! Defeat the Enemies Hold out until the boss arrives and defeat him to complete the level! Buy abilities to attack enemies Combine elements to gain maximum power Find successful combos and builds Complete levels to unlock new abilities Elemental Variants

Go to: http://store.steampowered.com/ and download STEAM client Click "Install Steam" (from the upper right corner) Install and start application, login with your Account name and Password (create one if you don't have). Please follow these instructions to activate a new retail purchase on Steam: Launch Steam and log into your Steam account. Click the Games Menu. Choose Activate a Product on Steam... Follow the onscreen instructions to complete the process. After successful code verification go to the "LIBRARY" tab and start downloading.