I wrote a sci-fi supplement for Quill: A Letter-Writing Roleplaying Game for a Single Player way back when. It's the first thing I self-published, it'll be five years old this year, and it's modest even by my standards now, but I'm still fond of it. #ttrpg https://www.drivethrurpg.com/en/product/337006/quill-exe-transmissions-from-the-black?affiliate_id=1256684