OSR Principles Primer
Overview
This synthesis captures the shared core of three foundational OSR texts: old-school play is defined less by specific mechanics and more by procedure, risk framing, and referee posture.
Recent additions emphasize how OSR principles are best treated as table maxims and practical prompts, not rigid doctrine. They also strengthen the emergent-story framing by contrasting open-world procedure with railroaded sequence play.
Shared Principles
- Exploration and logistics create meaningful decisions.
- Players solve problems primarily through declared action, not character-sheet buttons.
- Rules are deliberately incomplete; referee rulings bridge gaps quickly.
- Consequences should be legible and often dangerous.
- Prep favors situations and environments over predetermined narratives.
Practical Table Use
- Track turns, light, noise, and supply explicitly.
- Telegraph danger before resolution to support informed risk-taking.
- Reward reconnaissance, negotiation, and lateral plans.
- Keep encounter and reaction procedures active so outcomes stay emergent.