It was an ordinary day in the cephalopod research center. The scientists were in the Pacific Ocean sending deep sea ROVs to look for Architeuthis AKA the Giant Squid. After a day, they found one. It didn't run away, it instead stayed near the ROV and ate the bait in it's leisure. After finishing the delicious chum, it flashed quickly in an odd pattern and then left.
The scientists studied the video and puzzled over the meaning of the flashes. The captain of the vessel, a seasoned old salt, came in while they were replaying the video.
"Dang, that looks like Morse code," he said in surprise.
Everyone slowly turned to look at him. The chief researcher spoke up, "Impossible. It's just a trick of the light or something."
Raising an eyebrow, the captain had them replay the video while he read off the flashes. "H-E-L-L-0 space T-H-A-N-K-S space F-O-R space T-H-E space F-I-S-H and that's the end of the message."
A researcher had made notes of the length and duration of each flash, googled Morse Code and was slack jawed when the captain's translation was confirmed. Then all eyes were back on the video of the flashing Architeuthis.
You are the crew of the Kraken, a specialist team of deep sea divers and researchers. Your mission is to find "Gabby" the Architeuthis and establish contact with her. (It was determined that the Architeuthis was female.) You take the role of Researcher, Diver, Submariner, Oceanographer, Biologists, or SEAL Team Diver. The divers have Newt Suits for deep sea diving and are their own submarine.
By the way, you're not the only group out here looking for Gabby...
Finding Gabby and discovering why she's capable of communication and whether or not she's truly intelligent will be difficult. In competition with you are the forces of a foreign power (pick one) that wants Gabby for her military potential. Undersea combat is possible.
What is Gabby? Possibilities are:
- Architeuthis is a sentient species.
- Gabby is a one of a kind mutant.
- Gabby is not an Architeuthis, but an alien.
- Gabby is a genetically engineered creation that escaped.
The GM can pick one of those and let the story commence. Under the sea is a dangerous place, but unlike real life, the players have a chance to survive and not be squished into human pâté.
For the game system, I'd either use Fate Accelerated, INSPECTRES, or my own system, One Page Wonders.