BTRC Post Apocalypse game, a follow up to TimeLords and Spacetime.
From the back cover:
"WarpWorld opens the gates for you to enter this post-holocaust world of magic and lost technology. A world where the gods are real, and mythical creatures tread the silent streets of our ruined cities. A world where we can remember what we have lost, but not well enough to replace it. A world where those with Power bend the forces of nature to their will, and those without carry shotguns and swords instead. Where the bones of the Old World have been picked clean, and those who remain must either create a new order, or slowly sink into barbarism, forever losing what they once had within their grasp. The year is 2312, but no future you ever dreamed of. Prepare to enter the WarpWorld..."