Operation: Trinity
A downloadable game
The Intro
The Mariana Trench holds secrets. A facility built deep in the ocean where light cannot touch it. Unknown entities are studied and dissected, but something has gone wrong. An emergency distress beacon has been sent out. Cries of escaped test subjects, invading entities, and the loss of countless lives. Those who funded and built the facility are content to abandon it. The survivors of that facility need help, they need FIST. The facility is far from empty. Unknown entities hide and watch from the shadows while planning ambushes. Will you take everything you can from this treasure trove of amoral scientific advancement? Or will these dark hallways become your tomb?
What This Is
Operation: Trinity is a session guide for the TTRPG FIST that will task the players with rescuing a survivor from the mysterious Challenger Facility deep below the Mariana Trench. Operation: Trinity is a 20-page document that introduces 6 new Traits, 6 new items, and 9 new enemies. It also has a Mutation mechanic, where enemies will grow in power the longer players remain in the facility. This mission can be a one-off or could take multiple sessions to complete. This is also my submission to the FIST: JAM OPS II competition and is the first thing I've uploaded to Itchio. Im new to ttrpg stuff so understand things may be a bit rough around the edges.
Thanks!
I'd like to quickly throw thanks out to CLAYMORE for making FIST! It's the first ttrpg I've hosted and I adore it! Plus I got a lot of help from their discord on what to use and how to format these pages, and another thanks to my players! If yall didn't make hosting the game so fun and support my ideas I wouldn't have the confidence to make something like this and release it to the public!
Download
Install instructions
The file is a PDF
Comments
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not only is this mission great, it's good for multiple playthroughs w different groups and works perfectly as a big campaign finale!! 10/10
Well-organized and detailed longform (for most FIST content) supplement including a mission, cool experimental items for players to collect, unique monsters to confront, and themed TRAITS for players to acquire.
I have always found deep sea adventures to be naturally intense scenarios, much like deep space, because the environment itself is inherently deadly. With this mission, players have little room, relatively speaking, to flee given the limited number of rooms and their inability to exit the station until they find the escape pod. This intensity is baked into the scenario from the very beginning, as the characters must teleport into the mission without knowing if/how they’ll be able to leave. Additionally, the scenario is cleverly designed to ratchet up the tension and the threat by scaling creatures up as the players complete stages of the mission.