Beneath the Pressure: Core Rules of the Abyssal RPG
Descend into the deep. The pressure is rising.
Beneath The Pressure: Core Rules of the Abyssal RPG is a full tabletop role-playing system of deep-sea survival, exploration, and psychological endurance. Built on a custom d12 core mechanic, it balances precision and peril in a world where every decision risks collapse-of hull, body, or mind.
You and your crew descend into the drowned frontier: ruined stations, bioluminescent forests, and the black mouths of trenches that defy mapping. The water is alive, the machinery remembers, and the abyss listens.
Inside you'll find:
The d12 Core Mechanic - elegant and brutal, shaping success, stress, and survival under impossible weight.
Core Attributes & Skill Sets - Shell, Flow, Pressure, Current, Glow, and Echo define how divers endure and adapt.
Environmental Stress & Corruption Rules - track oxygen, damage, resonance, and the slow unraveling of sanity.
Faction Systems & Interplay - research enclaves, scavenger fleets, and faith cults all competing for what the deep reveals.
Threat Templates & Bestiary - from Stalker Jellies to Pelagic Reapers, each encounter echoes through the trenches.
Campaign & Exploration Frameworks - progress through zones, manage corruption over time, and uncover the choir beneath the current.
Every element of Beneath The Pressure is designed for gritty tactical play and narrative immersion. The rules reward careful planning, teamwork, and the courage to descend one meter deeper than wisdom allows.
More than a game of survival, it is a study of collapse-mechanical, biological, and spiritual.
The abyss does not forgive, but it remembers.
The deep is calling. Roll the d12 and hold your breath.
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