Crappy beta testing (or lack thereof) killed the game. Difficulty is absurd, there is heavy influence of luck, and total lack of strategy (higher levels are only beatable by combining fire and ice ships and PRAYING that the RNG favors them instead of ice/fire enemies).
Overall, a pretty boring AND frustrating experience. Star for effort only.
Good game, but the difficulty gets harder really, really fast. Besides being challenging, it's fun to play.
It's a neat game, but it becomes unplayable at around level 20. No combination of ships seems to work. It ends up with all my towers getting killed as 20 enemies swarm around the screen and nothing is focused on.
Its a great game, but as others have said the difficulty spikes up way too high too fast. I was basically cruising along until level 42 and it suddenly became impossible with the large number of ice ships freezing everything and fire ships with instant kills on my stations. I even tried filling the whole place with ships to no avail.
Otherwise great game though, except that some of the upgrades are a little pricey.
Could have been a good game if you simply play tested it for balance and bugs.. The difficulty spikes up way to fast, and as soon as you get a freeze powerup your turrets malfunction and don't shoot. The freezing sperm, who show up in high numbers, have such a high % to freeze your turret, and often freezes multiple ones at the same time, with it's effect lasting way to long, well soon end in you defeat. This sperm, along with clusters of enemies attacking you, soon becomes apparent to the player that matches are won randomly by the number of power ups enemy sperm drops, not strategy.