How did Shadows become a killer scenario? I remember playing it pretty strait back in the 80's and it was ok, but not that dangerous. Maybe I was missing something important. Did all the PCs die from mishaps on task rolls?
Cheers,
Bob W
all page numbers from the DA1 version
1) The atmosphere is insidious - defeats all personal protective measures in 8 hours. (p.4)
2) the beam has an 80% chance of destroying the ship if not shut down before attempting to leave the complex (p.4)
3) Yoribund is highly seismically active.
3.1) Falls are highly likely to breach the vacc suit (p.19) (Even when errata'd, most PC's are going to have a significant risk).
3.2) there is a 15/216 chance of earthquake per room entered, presuming the party stays together. that's roughly 7% (p.18)
4) life in the complex is toothed except for the juveniles, but the juveniles have serrated lips! (pp.18-19)
4.1) In other words, all three types have potential to kill with a single bite due to breach of suit integrity. See the CT rules for chances of holing the suits. In TTB p28, that's 10+ DM+4/level - which means 6+ for average vacc suit skill, and automatic for highly skilled (2+).
4.2) half the encounters are aggressive (attacking 40% of the time or more)
5) there are several spots where party members can fall 20+ meters - a potentially lethal fall on its own.
5.1) a snag on the way down is as lethal as an impact. Just a different kind of greasy smear.
That's before adding in the DGP-CT/MT task system's mishap rolls.
One interesting side effect is that the avoidance of issues roll from doing athletic or acrobatic actions is that the odds improve for skill 1 stat 5-9... from 10+ with a DM+4 (for net 6+) to Routine (7+) with a DM+1 (1ea from stat and skill, or from the skill doubled, depending upon how the GM translates it; doubled is a better fit to the CT description of things.
Unlike vacuum, an insidious atmosphere leak is quickly lethal. The CT rules don't state the damage from exposure, nor does shadows, so the presumption must be that it's rather damaging. This is best represented by the mishap rules - superficial mishaps doing 1d to stats, minor 2d, severe 4d, and destroyed killing outright.