Good job!! I would recommend adding more visual feedback of the actions (animations that show what happens with the units during the attack).

Great game. i like the graphics and sound effects and love the whole design of the game. well done

Love it despite I can't pass wave 4. Would definitely play a full version if it had more content and were more balanced.

It's not obvious what the enemies are doing. "HP" is a weird concept because you don't know what your enemies will be targeting. Is it contributing to an overall HP or just for that block? How much damage do enemies do? How many are coming in the future? I could definitely see myself playing this game more if I had more information about what was coming so I could better defend against it. Why should I build houses at all if they're so weak? 

The idea seems cool that you need to make desicions about defending yourself this round and have fewer options later or vice versa. But I would suggest that the waves grow at a slower rate because the game is so hard that none of the strategies seem to work and the desire for strategic thinking is gone. Also the battle itself wasn't really clear to me (how many HP does the enemy ship have? Do they shoot randomly? Are we fighting simultaniusly?) Otherwise pretty nice.

Love the idea

Pretty cool game! :) I got to about wave 3-4, but no further. One problem that I have is that I can't quite manage to find a strategy for this game (where to put what). Also, I enjoyed the feel of the game. Good job!

got to wave 4. this game is hard!

Nice game (sorry for my broken English)

Was playing this for ages. Very nice :)

Highest wave: 5

Really nice concept.
Imo it would benefit from a less steep difficulty curve

Excellently executed, well thought out idea. The choice between placing houses, defenses and shields is actually quite a difficult one and adds an interesting strategic element into the game as what you place down one turn determines your options in the next turn..