Good game, overall. 4/5. However, I have a few complaints about it.
First, the upgrade times are WAY too long. Just to get Hamdars, which aren't even all that great in terms of some of the later ships, I have to play this game for a month solid. They need to be reduced. I understand that they need to be long in order to make sure people have lots to do, but over A YEAR to upgrade the final level of the Space Station? SERIOUSLY?!
Second. GRAPHICS OPTIONS!!! After a while of playing, the game causes so much lag that it's hard to talk in the Kong chat. Changing the quality should be an option, as well as turning off the animations for buildings. They're what cause 90% of the lag, for me at least. To be honest, I normally don't play games that don't allow me to change the quality, but this one is pretty good.
Suggestion, and a very important one. A quality button. It's causing my browser to lag something fierce. Other than that, this is a very good game. 5/5