ZERO/Barrier is a publishing and media marketing company based out of Ottawa, Ontario, Canada. It is the primary publishing venue of Dyson Logos and for the material found on Dyson’s Dodecahedron.
Our publications are all Role Playing Game materials aimed at the “Old School Renaissance” market.
- Dyson’s Delves – critically-acclaimed book of maps and adventures
- Dyson’s Delves II – further maps and adventures by Dyson Logos
- Magical Theorems & Dark Pacts – a book of OSR spellcasting options
- Dyson’s Dodecahedron – an irregularly-published 12-page zine for the Labyrinth Lord RPG – 8 issues have been released to date.