Citizen Sleeper Developer Jump Over the Age Announces New RPG Signet City
The announcement extends Jump Over the Age's signature TRPG-style narrative design into a new genre premise, swapping space station sci-fi for a fungal parasite perspective in a decaying industrial city.
Reporting from 3 sources: Automaton, Denfaminicogamer, Game Spark.
Publisher Fellow Traveller announced the new RPG 'Signet City' during the PC Gaming Show 2026 broadcast on June 8. The game is being developed by Jump Over the Age, the solo studio of Gareth Damian Martin, creator of the acclaimed 'Citizen Sleeper' series. 'Signet City' is a first-person 'fungalpunk' RPG set in a monochrome world inspired by 1980s Britain and industrial cities in northern England. Players take on the role of a fungal parasite that infects humans, navigating a city on the brink of collapse due to rising water levels, strange technology, and radical ideas. The game uses a tabletop RPG-inspired system where dice rolls determine action outcomes, and the host's emotions affect success rates. Players can acquire skills and abilities, guide their hosts, and interact with their friends and rivals while managing resources. The Steam store page is live, and the game is scheduled for release on PC via Steam and GOG.com.
The game is set in the 1980s and draws visual and thematic inspiration from the UK and the industrial cities of northern England, according to the Steam store page. The trailer shows monochrome graphics, rugged city scenery, mushroom-like objects releasing spores, and the fungal parasite infecting humans.
Jump Over the Age is the solo development studio of Gareth Damian Martin. Martin previously created the narrative-focused games "In Other Waters" and the "Citizen Sleeper" series. "Citizen Sleeper" holds a "Very Positive" rating on Steam with 93% positive reviews out of 7,694 reviews at the time of writing. Its sequel, "Citizen Sleeper 2: Starward Vector," also holds a "Very Positive" rating with 92% positive out of 2,168 reviews.
The Steam store page summary mentions in-game elements such as "guide your hosts and interact with their friends and rivals" and "manage resources, improve skills and abilities." The game is scheduled for release on PC via Steam and GOG.com. The Steam store page is already live.
Synthesized by Yomimono from the 3 cited sources below, including Japanese-language reporting where cited, then editorially reviewed before publishing.