First Responders gives you:

• New rules and guidelines for adventure-sized disaster scenarios. As challenging and exciting as any RPG scenario, these are largely resolved through wit and skill rather than combat.
• Roster-style parties. Run multiple characters with different areas of expertise over the course of your campaign, calling up just the right expert for each disaster.
• New character options, including the Responder type and loads of disaster-related gear.
• Half a dozen scenarios—adventure-length disasters that pit your team against terrible odds. Plus everything you need to create your own.
• Easy portability to Numenera and other Cypher System games. Incorporate natural, man-made, or supernatural mega-challenges into any Cypher System game!

First Responders is a supplement for the Cypher System. It requires the Cypher System Rulebook for play.