New Challenge: On Normal Mode, try to beat the game without sending soldiers out. It sounds difficult. It IS difficult. But It's possible. I've done it at least once.
My starting strategy: Use your special after some men from the enemy's side have been sent out. With that money, buy the Egg Cannon (or whatever it's called). Then, try using the pause/play/pause/play strategy to make sure you don't die early in the game. Also remember that just because you can evolve, doesn't mean you should. One of the ages is actually worse to be on than the earlier one.
Good luck if you decide to try it. It'll take time and patience. Thank you for your time.
It is very much so possible...on the original Age of War by Luissi, If you evolve all the way to the modern age or futuristic age, a few of the towers leftover shots continue moving even if the enemy was already killed, therefore, the base would be destroyed eventually. This task took me about 45 minutes, once i got high enough and i felt safe i just left and played COD untill it was over :P