A new patch is up. Made casual slightly more easier by reducing upgrade and repair costs. I've also increase the time before each spawns to reduce the rate of the screen being flooded.
Certain turrets are better at certain range. At the start of the game, make sure to build closer to Earth because turrets because when closer to Earth, their movement is easier to predict and track. I usually build 2 particles at the 2nd and 7th position, and one laser at the 1st position.
Make sure you freeze the turret to protect a threat from a certain direction. You may have to pause a turret for a while and let it move again so that its path can intercept a certain threat.
Hope this helps!
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