I am working on a simple Android app. My app implements a D&D 5e character sheet. It lets the user fill form fields and calculates the effects of level progression and attributes. I am not using any grsphics from the official character sheet, only the names of attributes and skills.
The big question here is: Am I allowed to publish this app for free at Google Play or not?
I did my research and found this post: Is there a OGL or GSL license for D&D 5e? From what I understand (there is not much of it), there is a document called System Reference Document 5.0 (“SRD5”), which is basically a free version of the Player's Handbook licensed under the OGL.
I am not sure what “OGL” means. But would I be able to use information from the SRD in my app as long as I add the licence statement?
Or perhaps there are no copyright materials in the character sheet, considering it only consists of basic attributes and skills and few more form headers? And as I stated before, I am not using any graphics derived from the sheet itself. Maybe the only thing that might be problematic is the use of “Dungeons and Dragons” in my app.
I am very confused about all this, so any help would be very welcomed.