ULTRADELVE Announced as a Sci-Fi RPG About Scavenging Living Alien Ruins

Stillfleet Studio and Plus One Experience have announced ULTRADELVE, a tabletop roleplaying game that puts financially precarious fortune-seekers inside dangerous, living alien structures. For groups interested in science-fiction scavenging, the pitch pairs a rules-light system with ready-made environments and tools for creating their own exploration sites.

The announcement, published by Rascal as a community-submitted press release, credits Konstantine Paradias as writer, Anthony Grasso as artist and Wythe Marschall as editor. Its descriptions of the rules and contents are publisher claims, rather than an independent assessment of play.

ULTRADELVE takes place on an Earth changed overnight by a mysterious event called the Haze. Players become Delvers, ordinary people driven by precarious circumstances into fortune-seeking expeditions. Their destinations are the Structures: vast living alien megastructures containing dangerous environments called Biomes and valuable technologies known as Doodads.

The publishers describe the Grit System as rules-light and designed for fast setup. Advertised contents include four Delver classes and five ready-to-play Biomes that can be combined and recombined. Environmental Hazards, Structure-building rules and a catalogue of alien technology round out the proposed toolkit, giving game managers both prepared material and components for designing new sites to explore. How quickly those tools work at the table remains untested here.

Planned formats include a PDF and a physical softcover, with an adventure zine titled DELVER Magazine Issue 1 also mentioned. The release names November 3 as the intended BackerKit date, which has already passed as of November 6, 2026. That announcement of plans does not establish whether the campaign launched or whether any of the advertised products are currently available.

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