"That thing's dangerous. We aren't going to be able to capture it. We can just blow it out the airlock into space."
There are airlock controls here at the door to the landing claw chamber. Dallas preps a manual override which seals all vents and ducts to the landing claw chamber, purges the atmosphere out of it and triggers the landing claw chamber to open against Ash's protests. The landing claw chamber retracts but warning klaxons and flashing yellow hazard lights erupt throughout the ship.
On A Deck Ripley checks a terminal and sees a warning from MU/TH/ER
WARNING
HULL BREACH
PRESSURE DROPPING
ATMOSPHERE ESCAPING
She warns Dallas over the intercomm who closes the landing claw bay. The klaxons cut off but the warning lights still spin, increasing the entire crew's stress. Spooked, they gather on the bridge.
Lambert relays a damage report. "Hull breach detected in life support on B deck."
"What? That doesn't make any sense."
"For more info you can head to B deck and check the Life Support Terminal."
My wife got a pained expression on her face, "But I don'wannagotoBdeck!"
She summons her courage and sends Ripley, Brett and Parker to B deck. Darting from bulkhead to bulkhead, swinging the incinerator and motion detector back and forth, jumping at shadows, they reach the terminal on B deck. They check the pressure logs and find the landing claw chamber seals all closed correctly, but when the door was opened atmosphere began venting from the life support ducts on B deck, drawing atmosphere in from throughout the ship and venting it into space.
They ask if they can just seal off the life support system. I explain the air scrubbers in the bow of the ship are a bit like the Nostromo's heart. Multichambered and delicate. While they are large enough to crawl through, there are a network of smaller ventilation ducts, like capillaries, that run throughout the vessel to carry air to each chamber of the ship from the airscrubbers. In the event of a hull breach in the air scrubbers (from something like a stray meteor), the air scrubbers can be sealed off deck by deck from the Life Support Terminal. Once contained, typically maintenance personnel will enter the air scrubber ducts to manually close the iris doors around the breached location. After isolating the specific breached scrubber and sealing it, the entire air scrubber complex can be re-opened.
"Can we just seal each deck of air scrubbers?"
"Well, for a short time, but you'll fill the ship with CO2 and eventually die."
"What if we just cut off one deck and get into cryo?"
"The cryo units still use the airscrubbers to maintain your oxygen levels in cryo. You could risk it with just 50% capacity, but you are 10 months from home which is really risky."
"So you're saying we need to actually crawl into the vents, find the breach, and seal it?" my wife confirmed, "Screw Weyland-Yutani and their dumb ship. Why did they even design it this way?"
Since the air scrubbers recorded a hull breach, they decided to wear EVA suits into them ducts. I cautioned them that the bulky suits plus equipment they brought would be tricky to negotiate through the ducts, but they persisted. They again broke into two teams. Brett and Parker would enter the ducts on B deck followed by Ripley, while Dallas, Ash and Lambert would descend to C deck and wait outside the other scrubbers in case the alien tried to enter the scrubbers from their level.
The B deck team entered the completely dark air scrubbers, slowly moving in single file from a single entrance tunnel into the chambers at the center of the complex. Only one person could fit into each section at a time, so Parker was the first to encounter a number of distressing discoveries. Slime coated sections of ductwork, some resin-like extrusions in another scrubber and finally an air scrubber that appeared to be completely covered in a waxy brown resin, worked into a number rib-like nodules spanning the floor to ceiling the scrubber. This entire process took forever. The character movement was slow, the hour was getting late for the players, and the stress level of both players and characters was rising. To get done faster, they decided to split up. Brett took a side duct, while Parker started sealing the air scrubbers coated in resin since they probably wouldn't be functioning anyway. On C deck, Dallas and Lambert entered the tunnel to start checking for the hull breach. At that moment Ripley activated the motion detector. A faint, indistinct signal emenated from the far end of the air scrubber complex on B deck.
"Oh god, it's here. We need to get out of here!"
Brett pushed forward down his side passage towards the exit. As he did so he discovered more resin coatings but also a huge rend in the air duct passage, bent and corroded that offered access to the crawlspaces between the walls of the ship's quarters and the outer hull. He had little time to inspect the breach as loud, skittering movement echoed down the ductwork from behind him.
The alien leapt towards Brett, pushing him from the ductwork and into the white paneled hexagonal chamber outside. Laying on his back, desperately searching for his dropped incinerator Brett screams as the creature looms over him. Over open comms the entire crew hears his desperate strangled cry. Dallas and Lambert begin panicking as well. On C deck, Ash can look up into the chamber above, watching Brett's predicament. The creature retracts its lips, descends on Brett for a fatal 'head bite', Brett's skull is crushed by the beast's secondary jaws. The creature descends the ladder towards C deck landing next to Ash.
Parker manages to squeeze towards the ductwork in time to see the alien's tail disappear down the hatchway. He checks Brett but can offer no aid but looks down the hatchway gleefully, knowing Ash is finally going to get his due.
"The creature rises up from a crouch after landing next to Ash. The science officer backs against the wall, trying to squeeze into a corner of the hexagonal room. The beast whirls on him..."
"Yes! Finally! Get some Ash, it's what you deserve!"
"...but ignroing him turns towards the open tunnel where Dallas and Lambert entered."
"WHAT!!?!"
Using info from a cut scene in Aliens where the creatures ignore a similar synthetic, I decided the alien would treat Ash as just another piece of equipment. My wife and son, not realizing Ash was a robot, were shocked and dismayed. On his turn Parker pointed his incinerator down the hatch towards the creature and let loose, bathing it in flame. The initial attack hit it square in the back for three total damage, but the fire intensity only inflicted a single additional hit. The beast hissed and shot an arm up the hatch, yanking Parker down hard onto the C deck floor. Ripley finally manages to extricate herself from the air ducts to see the beast looming over Parker.
"What do you do?"
"Oh my god, I only have the motion detector. Oh we are so dead. So dead. Wait, Brett is here right? You said he dropped the incinerator?"
"Yes, it's laying in a pool of blood next to Brett's shattered corpse."
"YES! Ok, I drop the motion detector as a free action, pick the incinerator as a fast action and I'll use my slow action to shoot at the alien."
"You ready the incinerator, point it down onto C Deck. Ash has backed away, but the creature is engaged with Parker. You are going to hit them both with the flame."
"Oh my god, oh my god. We are screwed. Ripley's dead. Ok, what if I bash it with the butt of the incinerator? Can I jump down and try to smash it? The alien will kill Ripley but maybe Dallas and Lambert can escape."
"Sure, in fact I'll treat it as a blunt object which gives you an extra die."
"Ok, Ripley has, let's see, 3 strength and (oh great) 1 close combat. But I get to add 9 dice for my stress, right? Ok, here goes nothing."
Ripley flung herself down the hatchway, using her momentum to drive the butt of her incinerator into the creature's enormouse domed head for three points of damage (and no facehuggers on the stress dice!). Unfortunately for her the alien receives 8 dice for its armor. I reluctantly gathered the handful of dice as I knew the creature would likely be tearing poor Ripley to bits next round. The armor dice clattered across the table resulting in zero successes. I checked the creature's remaining health.
"The butt of the icinerator impacts the back of the creatures head, splitting a seam down its entire length. Caustic yellow fluid squirts from it and..." rolling 1 success on a whole handful of acid dice "... burns Ripley for a single point of damage. The beast collapses, shudders, and dies."
There was a moment of silent shock as the fact registered.
"You mean... we killed it?" I nodded and the table erupted in cheers. They had spent the last hour playing while standing up as a way to bleed off nervous energy from the rising tension. Now they erupted in excited, nervous laughter, "I can't believe it, I can't believe we killed it!" "Oh my gosh, that was great that was so great." "I was sure we were dead. I really thought I was going to get Ripley killed!" This was the first time I've ever seen my wife engaged by an RPG and my son was over the moon.
We played for about five hours, finishing up just before midnight on New Year's eve. We chatted about the game for a few minutes, then rushed to the couch to watch the ball drop with two minutes to go. As it did we cursed 2020 and welcomed 2021, watched some lame bands play to non-existant crowds, and finally gave up on NYE coverage around 1:30. As we tuned out my son piped up. "Dad, I know it's late, but can we watch Alien. Like, now?" So we did, and he was scared, and he was thrilled, and I got to share not only one of my favorite movies with him but the most unique RPG experience I think I've ever had with my family. This game is great.