I use the old school version of this as created by Dennis Meadows - a spreadsheet and a board with wooden boat markers etc. I think they have upgraded this with a new snazzy online version now available. Happy to chat with anyone about Fishbanks in the classroom. I use it on day 1. It is a fun, interactive way to sneak in learning on a first day. Also happy to learn how others have used this or similar resources. It makes a great entre to talk about tragedy of the commons, resource depletion and of course climate change. I find incentivizing with food (cupcakes etc.) for the winning team helps to create a more realistic competitive environment.