Simple Description:
You can modify this content and use it for a single product that you are developing, with the following limitations: You can't use this pack to make and sell more content packs. You can't release the source files. You can't make derived works and release the source files. You don't own the content. You are licensing the content and you have to abide by the rules and protect our copyright. You should buy the commercial license if you plan to use this pack in more than one product.
Simple Description:
You can modify this content and use it in an unlimited number of products that you are developing, with the following limitations: You can't use this pack to make and sell more content packs. You can't release the source files. You can't make derived works and release the source files. You don't own the content. You are licensing the content and you have to abide by the rules and protect our copyright.