You are a mad genius, this was too much fun honestly for an idle enjoyer like me, I'm looking forward for updates! There are a couple of issues like atoms escaping the room or too many atoms making the game lag, but both are fixable, very good game, loved it.
Viewing post in Fission Simulator jam comments
I'll just add a hard cap on the number of atoms you can buy at a time to fix the lag, but can you tell me more about the "atoms escaping the room" problem? I just use physics 2 for the walls and everything inside of it.
Again, this idea is the result of a consultation between me and someone else, and it was so out of the left field that I have to make it into reality.