GRAILS is a web-development framework based on the Groovy programming language. It's probably the actual most important project in the groovy echosystem. It's more precisely a 'metaframework", since it in most part the union of various existing java frameworks like Hibernate, Spring and Quartz. What suddenly blinked in my mind is that what I want to do is nearly the same, but for wargames: a framework wich allows the creation of a wide range of strategy games, with variable rules and specifications, and then run and play them over the web.