RogerBW's Blog

Notes on Mongoose's Bayern 7: Disaster 25 July 2025

This is part of an ongoing series about the preparations I've made to run Mongoose's revised edition of the Bayern campaign for 2300AD. Spoilers for Adventure Seed 2.

Two more advances since last time. And again, this Adventure Seed can also do with significant expansion. This is my version.

(The previous adventure seed, Derelict, occupies about as much space in the book as this one, one full page. But that took Whartson Hall six sessions, and this took one. Well, this is a bit more reactive rather than investigative.)

Entdecker is struck by the particle component of a small solar flare while about to enter atmosphere, which produces a localised electromagnetic pulse. All the lights go out, there's a solid thump as the hull bounces off the slightly denser gas region it was about to enter (there aren't many molecules but they're moving very fast), and the ship starts rotating. Emergency lighting comes on, but main systems are dead and there's smoke through most spaces. Many of the crew are unconscious, and the ship is tumbling in multiple axes…

(I called for END rolls just to see how people were coping with that. Low results indicate some vomiting.)

Failures are to be found in:

  • General hull structure (sprung seams)
  • Power plant (breakers)
  • Bridge (isolated by pressure loss)
  • Avionics (sensor burnout from EMP)
  • Reaction drive (fuel leaks)
  • Stutterwarp

Things to do, and some relevant skills, though this is really a problem-solving exercise:

  • Get main power back on. Circuit breaker trips in engineering thanks to very high acceleration, restart by hand (Engineer (Power)).

  • Stop the tumbling. Find affected sections (broadly the upper port hull), specifically rec area and galley; get any crew out, and depressurise them or patch from inside. Later, patch the holes in the hull. (This is leaks at stress points, caused by the atmospheric collision.) Then get attitude jets back online. Pilot (Spaceship)

  • Reaction drive damage: this is fuel feeds mostly. Needs internal and external fixes. Mechanic, Engineer (M-drive).

  • Stutterwarp damage: calibration damaged by impact. It will work, but will make sad noises, and going up to anything like normal operating frequencies won't work at all. A full fix will need Bayern's engineering resources. Engineer (Stutterwarp).

  • Don't crash into the planet. The ship is in an unsustainable low elliptical orbit having bounced off the upper atmosphere. Get the drive back on to stabilise, or use the stutterwarp to get out of danger. (Which probably means lining up individual jumps manually, until the tumbling is fixed, rather than the usual multi-terahertz rate.) Pilot (Spaceship).

  • Loss of pressure in rec area (which isolates the bridge).

  • Restart bridge systems and avionics (some component replacement needed). Electronics (Sensors).

  • Resolve the fuel leaks. Hydrogen is venting through the port VTOL engine housing into the cargo bay, and out into space. Eventually an environmental alarm will go off. Or there will be a spark, e.g. when the reaction drive goes on. Best fixed with an EVA to the fuel lines, and venting the cargo bay, though someone sufficiently bold could go into the VTOL engine housing and use a sealant gun before they freeze to death from adiabatic cooling as the liquid hydrogen expands into the housing. (Shipsuits are not heavily insulated; taking time to change into one of the heavy-duty exploration suits might be worth it.) Mechanic.

  • Save the crew, who are inhaling insulation smoke. Everyone has a helmet bag in a standard pouch on their ship suit, which will be fine as long as they aren't vomiting. Medic, Vacc Suit.

See also:
Notes on Mongoose's Bayern 0: Setup and Character Generation

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