
Postcard Adventure: The Third Stack (Dark Peak Solo RPG)
On Quisicosas since 25 August 2026
Featured in the newsletter of
25 August 2026 (on Substack)
What it is about
A dark parallel world you can walk into alone — now, for free. Someone wants a package carried into the gruizeyard and handed off at the Third Stack — three old industrial chimneys at the edge of a former steelworks, dead centre of crosslander territory. They didn't say why it has to be you. You took the job anyway. The crosslands don't run on the organic network the way Hellsborough does, which means the things that usually keep to a pattern out there don't. A ripperwing has been circling since before you noticed it. Somewhere in the stacked dead gruizers, something is clicking, looking for a host, and it does not intend to ask first. Field notes by Pip Rippon. Keep moving, and don't stop for the clicking. --- WHAT'S INSIDE - One Dark Peak location: the gruizeyard and the Third Stack, crosslander territory - Three creatures from the Bestiary — the Crosslanders, the Ripperwing, and a disassociated Symbiot - One page of reusable rules (OSR-adjacent, 2d6, no prep required) - A 2d6 Encounter Table — 12 results, including a network that logs you without warning anyone - Three outcomes: handoff made, downed in the gruizeyard, or bonded against your will - Pip Rippon's field notes throughout Format: A5 PDF, 14 pages. Murk Rating: II (see hellsborough.com/murk-rating for what that means) --- WHAT A SYMBIOT WANTS Bonded properly, a symbiot is a companion — a slow, mutual thing, built over time, and the crosslander clans keep them close for good reason. A disassociated one skips every stage that makes that survivable. It doesn't ask. It finds the nearest warm thing and takes what its last host was carrying, unfiltered, all at once. You may not have the words for what arrives. --- NEW TO SOLO RPGs? Start with Something in the Hole (hellsborough.com/adventures/something-in-the-hole) — free, and it walks you through a complete example turn before you spend a single die roll here. This one assumes you already know how a Test works. No GM. No group. No problem. --- ABOUT THE WORLD Hellsborough is the dark matter parallel world of Sheffield, S6. Accessible through the pentagonal junction at Hillsborough Corner — the most liminal place in the universe — it is a desolate, fog-drenched, post-industrial wasteland populated by twisted denizens, organic computer networks, and the occasional barghest with hunger management issues. The Postcard Adventures are standalone solo RPG scenarios set in Hellsborough and The Dark Peak. Each one is a different location, a different set of creatures from the Bestiary, and a different very bad night. More: hellsborough.com --- Published by Demonspawn Books and Games, Sheffield S6, South Yorkshire. Written by Pip Rippon. Managed by Bull Stuart. See every Postcard Adventure, not just the newest four — free account: hellsborough.com/signup Creative Commons Attribution 4.0 International (CC BY 4.0).





