Beneath Europa's Ice

Below the miles-thick, icy shell of one of Jupiter’s moons, Europa, is a vast ocean that’s totally unexplored. A group of scientists drilled through the ice and sent a crewed submarine into the depths… which was very soon attacked and destroyed by an unknown number of enormous life forms. You play, in this GM-less, solo journaling TTRPG, as (presumably) the sole survivor of that attack, having esc…