Looking good! Now let's add some astrophysics based game mechanics! Jokes apart, that's great progress. Meanwhile, just curious to hear your game idea and how you've planned it for the 'No violence' theme.
We are not trying to stifle creativity. If you can use any gameplay elements that are integral to your game's storyline or concept. The core idea is that the overall messaging from the game should not condone violence. I think both Plan B and Plan A work too, in the aspect you have described.