I have done it in hard mode without cheats.
Some tips:
Improve the main gun and the repair drone till the 5th chapter, then start making fighter ships, as much as you can, are much better than turrets!
Done in hard mode!!!
Effigy of the Forgotten
Dude! You just completed the Effigy of the Forgotten achievement in Orbital Decay and won the Effigy of the Forgotten badge and 30 points!
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