From the introduction: The Lore Role-Playing Game System was purpose-built for this [sic] Rational Magic setting. This system should give you a fast and meaningful role playing experience which also ties a character’s story and development into the game world. User summary: The Lore System is intended to function as a system reference document for Rational Magic and Lore System. The Lore System as presented is available for use under the Singularity True Open Game License (STOGL) which is presented in the document. The license grant restricts material that "promotes bigotry, racism, sexism or fascism", is non-transferable, and requires attribution. The license can be terminated under various circumstances.