4
votes
2answers
82 views

Are the names of the more generic planes copyrighted under the OGL as Product Identity?

I.e. "Negative Energy Plane", "Elemental Plane of Air", "Material Plane", essentially all the inner planes plus the material plane: Are these considered Product Identity or could I use them for other ...
8
votes
1answer
814 views

Is it possible to use rules from OGL or GSL in a computer game?

I'm experimenting with making an RPG game for mobile phones, and I could save some time if I used an established system for stats and combat etc. From a quick read of the licenses I'm not sure whether ...