Certain Fathoms: A Depth-Crawl Module for Mothership RPG
Launching October 14th on Backerkit as part of Mothership Month 25
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Certain Fathoms is a 50+ page saddle-stitched zine with the following:
- A depth-crawl megacomplex book with 20+ floors, ranging from personnel- to industrial-scale, each with its own strange mysteries and unraveling horrors.
- Four dangerous factions led by powerful remnants of Welkin Orbital, from the Loopers trapped in an eternal birthday party to the Custodians who keep the lights on - by any means necessary.
- A replayable and repeatable gameplay loop, where destinations, anomalies, and random encounter breaches are rolled to create new situations with every delve.
- 40+ new prototype cybermods and slickware from the fine researchers at Welkin. Some are hidden away in secret chambers and lost labs, while others will have to be pulled from cold, dead hands.
- Miranda, a new patron NPC who'll guide you through the facility, as she herself uncovers her connection to the sprawling Welkin Campus.
And that's not all:
- New art from the likes of DC Stow, Amanda Lee Franck, Evangeline Gallagher, and more.
- Easy-to-reference layout for quick reading at the table.
- Hundreds of secrets and reality-breaking truths, from the real reason Welkin Orbital went under to the purpose behind the enigmatic YR-XII project.
- Exciting stretch goals featuring guest writers Alfred Valley (Thousand Empty Light), Sam Sorensen (Seas of Sand), Snow (Songbirds, .dungeon), watt (Cloud Empress), and more.
Follow the project today.
When you follow, you’ll get notified the moment we launch—plus, you’ll receive a free digital pamphlet: The Welkin Orbital Vertical Transit Operations Manual, a sleek in-universe handout that doubles as a look into the Black Elevator's function and as a player-facing intro to Welkin Campus.
Want more? Reserve now for just $1.
When you reserve and later back at launch, you’ll unlock the Welkin Orbital Personnel Dossier—an exclusive 20+ page digital supplement packed with:
- Biographical indexes of Welkin executives and researchers
- Internal memos and scraps of corporate history
- Seeds for new mysteries your players can pursue in-game
This dossier will only ever be available to followers who reserve before launch.
SPONSORED
Certain Fathoms launches on BackerKit October 14—follow the project today to grab a free embroidered patch, digital goodies, and much more prior to launch!
