Don't invest in pixels or magnetism. Here's why: New types of enemies come based on your level, not based on time. If you level faster, harder enemies come faster. So at level X, you always fight the same enemies. So any points you spend leveling faster just means less firepower against those enemies.
Disable sounds doesn't turn off the annoying "motor won't start" sound when you have an animal pod partially powered. Also, "Disable auto-forward" resets every time you reload. Nice game otherwise, thanks for fixing the issues we reported earlier.
Gets repetitive because every battle is the same. The upgrades between battle don't really change your strategy. A system where, between battles, you unlock and upgrade units could make this game a lot more replayable (this is fairly common these days). Yeah, a big feature like that probably needs to get added before the software is beta, but figured I'd mention it for next round.
Please make the computer understand to group its troops, not send them 1 at a time. Once you do that, you'll probably want to reduce the computer's economic advantage. (Basically, better AI, less computer cheating).
Same idea as the City Defense upgrade. You say the first Military upgrade "Improves materials for weapons. Reduces troop building time." The first sentence makes me think it improves troop stats, but based on the other upgrades I think the first sentence is just descriptive, meaning it only reduces building time. This is ambiguous. You should make descriptions clearer.
You make the farming upgrade improve city defense. The name "farming" suggests it will allow more troops. You should name it "Thicker City Walls" or something similar.
Archers on defend should fire at enemies as soon as the enemies enter archers' range. Currently they only start firing when you click attack, or when enemies start hitting your troops.
Very cool concept, buggy game. The gun builder is badly imbalanced, guns I make cost so much less than the premade guns you offer. Also, the sliders are frustrating for when you're trying to get just the right price for a gun. Would be nice to have some pre-made graphics for custom guns, since my art skills are pretty bad. But has potential.
Similar to Fly Hard (same music, layout, etc) but not as good. Steering is slow, upgrades are very limited. Not bad, but there are so many games like this, can't see a reason to play this one.