Drone Invaders is surprisingly addictive - the game play has been highly enjoyable. Congratulations on shipping a really fun game!
Just one minor note: I'm left-handed, but the position of the reload button on the bottom left corner means I either have to stop shooting and move my finger down to reload, or else use my comparatively inept right hand to shoot. Again, it's only a small observation but I thought I'd send it your way for consideration.
Actually, the reload is added to make sure you stop the shooting ;)
But, I also noticed that on tablets you would easily use both hands: one to shoot, other to reload, esp. on 10-inch tablet, where the distance is too great.
I guess I'll have to add a left-handed option to reverse the reload button and wave number.
I've been playing it several times a day since you hit the front page of HN. That's very unusual for me with anything other than puzzle type games. I read your entire blog and that, in part, fuels my interest in the game... but aside from that, it's just a darn fun game. There are a few things I'd do differently, but overall, I'm extremely impressed with it.
http://slagalica.tv/drones.php
Can you compare yours to this? Am I doing any good?
Thanks.