"1. You can’t reverse engineer our games to access the assets or otherwise do things that the games don’t normally permit in order to create your Items.
2. You can’t use Game Content to create pornographic or obscene Items, or anything that contains vulgar, racist, hateful, or otherwise objectionable content.
3. You can’t sell or otherwise earn anything from your Items. We will let you have advertising on the page with the Item on it, but that’s it. That means you can’t sell it, post it on a site that requires subscription or other fees, solicit donations of any kind (even by PayPal), use it to enter a contest or sweepstakes, or post it on a page you use to sell other items (even if those other items have nothing to do with Game Content or Microsoft).
4. You can’t use the soundtracks or audio effects from the original game. We often license those from third parties and don’t have the rights to pass them on to you.
5. You can’t infringe anyone’s IP rights in your Item, even if the IP rights being infringed don’t belong to Microsoft. Among other things that means you can’t use any of Microsoft’s trademarked logos or names except in the ways described in the pages linked from
www.microsoft.com/trademarks.6. You can’t add to the game universe or expand on the story told in the game with “lost chapters” or back story or anything like that.
7. You can’t grant anyone the right to build on your creations. We don’t mind if other people help you out, but you have to be clear with them that it’s not you giving permission, it’s us. (That’s how we make sure everyone plays by the same rules.)"
