Is the Cortex Prime Game Handbook available offline? AmbyR September 24, 2020 16:44 Updated The hard-cover edition of the Cortex Prime Game Handbook will soon be available to purchase from retailers. You can follow us on Twitter, Facebook, or join the Cortex RPG Discord server to receive updates. Related articles How do I download the PDF? What is a digital sourcebook? Can I try it out? How do I know I’ll want to buy it? What are the planned IPs for future releases? How do I play Cortex?