Really neat idea with a thought-provoking concept. Aiming the collection tool with the mouse feels a little clunky but overall I loved it and it's kind of a shame this isn't getting more traction.
Also, bug report:
1: Open the settings menu, apply settings and return to menu
2: Start new game
3: After the opening text crawl, I enter the fist mission as normal, but a non-interactive copy of the settings menu will overlay the screen and I can't see anything.