@vampto seriously dude, it is not rocket science... if you go in order of difficulty, the game almost plays itself. Otherwise, just spend time defending against enemies that could level your skill.
The game does not save. It is not the first time it happens to me - Kongregate just has plenty of non-functional games as of late.
It also won't let you use keyboard shortcuts sometimes. This is tiring.
What the hell happened? So many bells and whistles, and such a jumping through hoop course just to get the game ready to be played. This is no longer SwarmSim... I don't like it much...