Open Game License
The Open Game License ( OGL ) belongs to the open content licenses, that allows free utilization of its subordinate stations. In this respect it resembles the GPL and was also inspired by the idea of free software.
It was created by Wizards of the Coast ( WotC ) to facilitate the sales of additional books for their role -playing game Dungeons & Dragons, especially to its regulatory framework to maintain a presence in areas that do not appear lucrative enough for WotC themselves. Not to be confused is the OGL with the d20 license, the d20 allows the use of the mark on his own works.