DoubleZero is a tabletop roleplaying toolkit. It works with any modern setting that doesn’t lean into characters with magic, paranormal abilities, or superpowers. The skill-driven system is perfect for mystery, espionage, thrillers, procedurals, and drama. You can play out stories and adventures based on your favorite television series, films, and novels. DoubleZero: Primer is an overview of the system. It explains the fundamentals of how things work, and what you need to know to get started. There’s also a dose of the philosophy and intentions that went into its creation and why certain design choices were made. - from the publisher's blurb