Very good game! Thanks Mr Sudarto :)
And thanks kongregate for uploading it.
Now for the people who complain about the game: it is tagged "strategy", not "idle" or "lame piece of cake". We have to THINK to play it right:) which is why it's harder and harder as you advance. Same with the buildings: think and place them at right place in right time.
All in all it might not be perfect but that's what we are given. Say thank you or make a game of your own, why don't you?