We are interested in new GURPS submissions sold electronically through Warehouse 23. (Note: Publishers looking to sell PDF game materials via Warehouse 23 should send email to firstname.lastname@example.org. The information here is for writers who want to write for us directly.)
We handle our digital-supplement projects the same as all of our projects, so read our general Authors' Guidelines; everything there is important, and we expect authors to be familiar with our style. For most products, the Roleplaying Book Submission Guidelines information will be particularly relevant. There is a lot there, but it's worth your time.
Here are the specific things to know about writing GURPS material for Warehouse 23.
Follow the guidelines linked above, with two exceptions:
For now, we are looking for GURPS Fourth Edition materials. New supplements can relate to published Fourth Edition books, or they can stand alone. (We might consider other projects, but such initiatives usually begin in-house.)
Size: We are mostly interested in products ranging from about 13,000 to 27,000 words, although we will review larger projects. The PDF format is flexible, so we can vary quite a bit on the specifics. Nonetheless, we prefer small, bite-sized supplements that go in-depth on reasonably narrow topics.
Topics: Read over the wish list! We'll entertain other ideas, but the wish list gives you a list of topics we already know we want - no salesmanship required on your part.
Layout/Art: This will usually be our problem. If maps or diagrams are required, we expect an understandable sketch we can work from, but that's about it. (If you are able to generate usable maps, please let us know!)
PDFs have smaller sales figures than print books, but they also have a better profit-per-unit ratio! So our base royalty is 25% of the cover price (this can go up for authors with a strong reputation that helps sell books, and can go down for inexperienced authors or those requiring very heavy edits). We pay royalties on a monthly basis.
We do also offer flat fees; talk to the submissions editor.
When we buy something to sell digitally, we are buying all rights as a work-for-hire contract unless we negotiate otherwise. When it's appropriate, we will negotiate otherwise. For supplements to our existing products, that's not negotiable at all; we have to own all rights in supplementary works. But for products like (for instance) game adaptations of webcomics, our contract will of course recognize the rights of the original creator!
If you somehow missed it . . . all submissions and inquiries should go to the submissions editor, at email@example.com.