After getting properly scared of trademark law, I was finally convinced that Aurora is a poor choice of name for my game. Today, I changed it to Auralux, and edited everything I could to reflect the switch.
Auralux makes some sense as a combination of Aura + Aural + Lux (light), but it doesn't sound right to my ears yet. Aurora had been the name of the project from the very very beginning, when all I had in mind was a vision of stars colliding in space. I'm loathe to give it up.
But alas, business sense must intervene now that I'm trying to actually sell a commercial game. And besides, purely as a matter of courtesy, it isn't good to be stepping on the toes of Aurora the awesome Unity game, or Aurora the 4X game, or any of the various Aurora flash games.