Ask HN: Recommendations for a self hosted, open source, startup simulator

I am planning a startup workshop for a group of undergraduate students. I was looking for a startup simulation tool that could be used to engage them through participation. Ideally, something which provides a competitive environment for multiple startup teams.

Examples are like these: https://www.bacu.me/business_simulator/index.html https://mitsloan.mit.edu/teaching-resources-library/management-simulations http://thefounder.biz/play/

It would need to be self hosted to allow access within a local college lab and open source to allow local flavors to be introduced.

Thanks!