Cool little entry here.  I wish there was slightly more info on what does what, but the core concept is pretty cool.

Took me a minute to realise that hovering your mouse over an icon gives some info. Still wasn't sure what some of the things do. I couldn't generate enough power to last longer than the 2nd wave. If there were some instructions, I'd definitely try more.

A bit confusing at the start but I think I understood more as I went along. Fun little defense game!

Fun little game, the music is very epic, the only thing i would like it to have the price of the buildings and what they do, beyond the fact that is quite intuitive from the images i think a small name would give it a plus at least.
Great work!

Really cool concept. Might need some more instruction to help with early play.

This was really fun, it would be nice to maybe have  a tooltip to say what each tower does, but really well done. even though a lot of the art is pretty simple managed to make it look quite stylish, especially the earth spinning. Good job overall.