Hi Bill, 

Currently, En-ROADS cannot be downloaded for desktop use. However, if you pre-load En-ROADS in your browser when connected to the internet and keep the window or tab open, it will continue to work even if your computer becomes disconnected from wifi. Just don’t close the window! 

We recommend you preload En-ROADS into two windows to be safe. The extra window can be useful if you want to test an action outside of the scenario you are building. It’s best to test it this way once or twice before your actual event. 

All the best,

Janet