High/Low RPG is a flexible, lightweight tabletop roleplaying game focused on collaborative storytelling. Its simple rules and mechanics, along with a few six-sided dice, are designed to help players create exciting stories quickly and enjoyably. The game is suited to groups looking for a narrative-focused experience without a large or complicated ruleset.

The core rulebook is available in two formats: HTML for reading in a web browser and a PDF designed for printing on A5 paper, with two-sided printing in mind. High/Low draws inspiration from open-source tabletop games including Blades in the Dark, Fate Core, Freeform Universal RPG, and Tricube Tales, adapting or building on ideas from these works.

The game is released under the Creative Commons Attribution-ShareAlike 4.0 International License. This allows people to share, adapt, and remix the material for any purpose, provided they give appropriate credit and distribute their work under the same terms. Its LaTeX source is maintained in a Git repository and can be compiled into PDF or HTML rulebooks.