Boxes in space

This is my submission to ludum dare 46, enjoy! theme: keep it alive.

controls:

• (while hovering on a box) - left click to select it.
• (while not hovering on a box) - left click and drag to select multiple boxes.
• right click to control selected boxes.

To be honest, I don't know what those boxes are doing out there in space, but meh, just protect them from the asteroids. Also, it seems that if one explodes, all of them just, poof.

P.S: when the boxes spawn, they are green for 2 seconds, looks like they don't get damaged by asteroids during this time... hm weird boxes.