Well, let’s understand the problem first. There are hundreds, perhaps thousands of RPG, each with their own rules and sheets, spells and items. Putting even a basic version of all these rpgs in Multiverse Designer would be impossible. So we decided to create a RPG rules tool/language. This tool is called Criteria. It is a fully developed computer language, tailored specifically to create RPG rules. The game will ship with some RPG rules, but we expect that our community will be able to create more rules in the future. Criteria has no oriented genre and it is completely generic. Theoretically, any RPG rules could be made with Criteria. Criteria was designed to be easily expanded, if needed, for any specific RPG.  Using Criteria, it will be possible to define initiative, HP, attributes, skills, feats, magic items, spells and rules to use them. Criteria works along with MD Maps, pieces, the character editor and the campaign editor.