Given one star literally because the enemy can send one-ship fleets at me and whittle down my vastly superior fleet, because my fleet all starts off together and well away from the enemy- except one ship, which starts right next to theirs and gets boarded and destroyed first turn. So stupid. Otherwise would have been maybe 3 stars.
Range indicators and removal/ selling of towers are immediate needs, tower descriptions and gem/ tower unlock/upgrade currency transparency only a little less so. Graphics are very nice. Aside from the aforementioned issues, a nicely-done game.