Pressure12 SRD

Pressure12 is a TTRPG engine designed to power one-page RPGs and solo games for fast-paced sessions where fiction is always front and center, and the stakes rise with every dice roll. Pressure12 uses only a handful of twelve-sided dice to ensure consistency and roll mechanics supporting the intense gameplay experiences it’s built for. The name “Pressure” comes from its core mechanic: the more you roll (and fail), the more physical or mental stress you accumulate—until your character is defeated. To survive, players will rely on a mix of skills and items selected during character creation to mitigate the difficulty of rolls. Pressure12 features modular difficulty rules, allowing you to tailor the challenge level to suit the story you want your players to experience best—a heroic, action-packed adventure or a drama in which the fun is seeing just how badly things can go. The engine is presented in its pure form and is available under the Creative Commons License CC BY-SA 4.0.