Thanks for the feedback!
Purchasing ships is meant to be relatively cheap since every spawn costs XP. The bigger long-term sunk cost is the upgrades, which grow in cost exponentially.
Just finished a quick map after downloading the game for the first time, but I can't start playing the map without saving the game first. Problem is, when I go to "Save map", I type a name for the map, "bridge", then click "Save map" to save it. Then, I just click "cancel" to get out of that tab and I assumed it was saved. However, as I went to click "Play map", it told me Map changes need to saved first. I went to "Load map" and clicked the dropdown tab, nothing was there. I don't want to lose this map because I can't save it even though I keep trying to.
Any help on how to solve this?