OH MY GOD. PLEASE. This is a great game, but there are so many bugs. And they are bugs of the worst kind. THE VERY WORST.
I got stuck with infinitely negative arrival time going to a city, and it just kept switching from going to and from the city, never allowing me to stop. arghh...
I want a better cannon. 1 big, 1 small does not satisfy me. A bright shield should not be the end. In fact, I want lasers. Lots and Lots of Lasers. Please. Think of the children.
4/5 for not enough upgrades