I liked the game. I only with the turrets would play a bigger role.
It's not that hard when you have a sound strategy. A few suggestions that worked for _me_:
* Don't bother with turrets. Waste of money.
* Learn to lead your targets and max out your main cannon (but don't bother upping its HP - it's pointless). Upgrade repair capacity as necessary.
* Don't bother shooting asteroids unless there are no other threats. They seem to cause more damage if they're broken up.
* Fighters become important when the mines show up. More fighters = better than few, upgraded fighters. With a big bunch of flimsy fighters running interference and attracting the mines, the rest of the game is a piece of cake.
 "Bullet Audyssey"){kind=icon}
 "Orbital Decay"){kind=icon}
 "Hedgehog Launch"){kind=icon}