Ah that's very cool! I'm a big fan of systems, dynamics, and analytical complexity. While I've heard of netlogo I've not given it a proper look, it might be good to do that now. In the past I've used machinations.io to model economies, and it still amazes me how simple numbers with out any real graphics can be so captivating. Like I can spend a solid fifteen minutes just looking at numbers going up, and down. But, admittedly, systems aren't fun in their nature. We add it through the psychology of play and tension, which is whole another topic that I absolutely love. Thanks for the ideas! :)