Quotas are tight, the company is on our ass, and our jump drive has broken down. A centuries-old distress signal is coming from the nearby planet of OGYGIA-III. The planet is entirely water, and the distressed ship is some 60 meters under the surface. With repurposed hazard suits, you (the crew of the NSS ODYSSEUS) will be going under to scavenge replacement parts for our jump drive- if anyone is found alive down there, saving them is secondary.

THIS ADVENTURE CONTAINS: Drowning, body horror, torture

Within the walls of the forgotten NSS-CALYPSO, you will find

• 10 varied encounters to add spice to any session
• 8 rooms to drown in
• Multiple NPC's in watery graves
• The crushing might of the ocean
• A mysterious corporate coverup
• A lonely ghost who just wants friends. Forever.

WRITTEN BY
Alex Farina
Devin Hasenjaeger

LAYOUT BY
Alex Farina

ADDITIONAL ART BY
Devin Hasenjaeger

EDITED BY

Myrmidont

Compatible with the MOTHERSHIP TTRPG by Tuesday Knight Games. All rights reserved. Find the official rule book here.

UPDATE v1.1 5/23/2025
Minor formatting changes