Near the end of my PhD I started volunteering for RESAAS. They were interested in modelling the traffic on their website. So I developed some simulation software in C#. They were kind enough to let me publish parts of this program.
The main part of the software is a simulation program which compares a queueing system where customers are served on a First-Come-First-Served basis with a queueing system where some customers get priority over others. A detailed explanation for the program can be found here. The C# code is avaiable on GitHub.