Well, there have been occasional minor updates on the status of the VIGoV Subatomic Particle simulator since it was exhibited in January 2014, but no real progress, despite optimistic sentiments voiced in the first half of that year. Since then, I have gone on to do first-year physics in university, including a little Quantum Mechanics. This opened my eyes to just how little of an idea I had of what I was doing when I wrote that code. Examining it again, I'm even less sure of what I was trying to do in certain parts.
In short, I don't believe it to be salvageable. It was a huge project for someone who had never done university-level physics, and, while it was an educational experience, with some interesting (and sometimes impressive!) results, it can't really be taken any further. The basic ways in which the simulation is carried out appear to be very flawed, but I don't know how to fix them, despite what I may have told myself in the past. That is why I am suspending development for a couple of years.
Over the next few years, I will be learning about Quantum Mechanics in university. Then I may be able to continue the project, or at least rewrite some sections of it from scratch, on a sounder footing. Until then, I am frankly afraid to touch the code.
So, while I had fun programming it and learned quite a lot, I feel it best to park the Subatomic Particle Simulator indefinitely.