What is Open Gaming Content (OGC)?
Basically, it is content in a book that the author declares open. In this case open means anyone else can copy that content and add it to their own book (or article, website, etc), either as is or modified. But the copyright of the source that the open text was taken from must be written in section 15 of the Open Gaming License. Taking any text that is declared closed or Product Identity (or PI) is a big no no. Remember: Im not a lawyer, so this is just basic info on terminology, not legal advice. For a more detailed answer, Wikipedia: The OGL describes two forms of content: Open Gaming Content (or OGC) and non-OGC content – that is content protected by normal copyright, commonly referred to as “closed content”. The OGL permits the inclusion of both OGC – or “open content” – and closed content within a single work. Publishers are required to “clearly indicate” those parts of a work that are OGC. The OGL also defines the concept of Product Identity (or PI). PI is defined as: “…product
