RiskUtil is the app I use to generate the Cards.data and Country.data object archives. If you want to mess with the cards or countries, you can most likely figure out what's going on. You must copy the Cards directory from the Risk directory into the RiskUtil directory to use RiskUtil.
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.