Foundry VTT Module · Mothership 1e · Sci-Fi Horror
Lost Mark
Four hours remain. The Silk Star is breaking apart.
Lost Mark is a cinematic sci-fi horror adventure module for Mothership 1E, fully prepared for play in Foundry Virtual Tabletop.
The crew arrives near the derelict Silk Star, a scrap-built vessel trapped in the pull of a hungry micro black hole. Something aboard the ship is still calling. Something inside it is changing. In a few hours, the orbit will fail — and everyone still aboard will be dragged into the dark.
Designed for a tense 3–4 hour session, Lost Mark combines doomed spacecraft exploration, cult horror, environmental pressure, and a real-time countdown that keeps the table moving toward collapse.
Built for Foundry VTT
This module is not just a digital copy of the adventure. It is prepared as a ready-to-play Foundry experience, with scenes, navigation tools, handouts, ambience, and interactive elements arranged for smooth online play.
Inside the module, you will find:
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Ready-to-play scenes for the Silk Star and key narrative locations
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A detailed ship map prepared for virtual tabletop play
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Interactive in-world terminal elements
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Journals and handouts for running the adventure
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Music and ambience to support the horror atmosphere
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A real-time countdown structure for mounting pressure
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Organized content for quick reference during the session
Explore the Silk Star. Uncover Mark Apollo’s Ascension. Decide what can still be saved before the ship breaks apart.
Lost Mark is designed for Game Masters who want a compact, atmospheric Mothership scenario with minimal preparation and strong table presence in Foundry VTT.
What’s inside the module?
Lost Mark is prepared for play inside Foundry VTT: scenes, maps, journals, music, ambience, and interactive tools are already assembled for the Warden.
13 narrative scenes
Frame key moments with cinematic narrative scenes, including a switchable VHS effect for corrupted transmissions, visions, and shipboard horror.
Schematic maps for theater-of-the-mind play
Use clean ship schematics to guide exploration without turning every scene into a tactical encounter.
Hand-drawn tactical map
For moments when positioning matters, the module includes a hand-drawn tactical map with dynamic lighting, ambient sound, and prepared notes.
Interactive journals
Run the scenario from structured journals with images, navigation blocks, and playlist launch buttons for fast use during the session.
Interactive terminal
Reveal fragments of shipboard lore, cult records, and hidden information through an in-universe terminal. Show selected entries only to the players who should see them.
Original music and ambience
Use specially composed tracks and ambient sounds to reinforce the atmosphere of an abandoned ship falling toward annihilation.
Built for the Warden
Lost Mark is designed for a fast, atmospheric one-shot: a clear countdown, prepared scenes, strong audiovisual support, and enough structure to run the module without rebuilding it from scratch.
Four hours remain. The ship is breaking apart. The cult is waiting. Something inside the vessel wants to ascend.
This product is based on the Mothership® Sci-Fi Horror Role Playing Game, published by Tuesday Knight Games. This product is published under license. MOTHERSHIP® is a registered trademark of Tuesday Knight Games. All rights reserved. For additional information, visit www.tuesdayknightgames.com or contact contact@tuesdayknightgames.com.