Through the Gates of Majesty

You've heard of the book, "Through the Gates of Splendor," now get ready for the video game that is literally nothing like it what-so-ever. Through the Gates of Majesty is a standard tower defense game with a slight twist. Click on a block to place a tower. You have a maximum of four towers. If you place a fifth, the first will be destroyed along with the block underneath. However, if you leave a tower in the same spot for 30 seconds, a similar outcome will occur, but stealthily (meaning without any cool sound or visual effects because I am not good at programming).  Lose all your health, and the game will restart.