Powerful simulations

Creating engaging online simulations that give students agency is challenging. I've come across a few that are very powerful (through a course I'm taking).  Here are four that I'd recommend highly:

Spent  (from the Urban Ministries of Durham NC) puts you in the shoes of someone trying to make ends meet with limited resources.  What job should you do?  Where will you live?  What do you do when your car breaks down?  As you make choices, the balance of your savings is shown on the upper left. 

Rebuilding Haiti was created after the 2010 earthquake.  Students learn about the challenges and decisions that government officials, NGOs, and others face and how their choices play out in the future.

Journey to the End of Coal is a web documentary about the coal industry in China in which the viewer plays an active role.

Pirate Fishing puts students in the role of a junior researcher gathering evidence about illegal fishing.

What are other simulations that you use in class?