exactly and i dont see a theme here yet, i'd call it:
- inversion

though am quite sure that name mustve already been used

[EDIT]
you should be able to edit the first post to change the name

[EDIT 2]
yes i remember a game was recently announced called inversion, too bad ^^

i just think it needs to sound empty or weightless, like void or something but goodluck, maybe others do like skytitans