Good game, but has one serious flaw that prevents me from playing it: the fact that you have to run back to your ship at the end of a mission in a 2 minute timespan without a minimap. I got lost going back and dont feel like playing it again because the same thing will probably happen all over.
Level 5 may be impossible: at least with the skill paths i had chosen.
The whole level is super easy, took no damage at all, then the (presumably) last wave comes in and absolutely crushes me. Cant even kill half of them. It might be possible had i chosen the slow free income skill set, but i had picked rockets and a bunch of small upgrades here and there. Didnt notice a way to reset my skills so i think i am stuck. I tried a few things like mass splash upgraded towers all in 1 base, but that didnt even work. Cant think of anything else to try.
I had a lot of fun playing the game up to that point, but i dont think i want to go through it again just to change my skills around.
 "Mechanical Commando"){kind=icon}
 "Divergence Turret Defense"){kind=icon}