Larry Niven's "Known Space"

The Races

• The Kzinti: Those feline menaces, the terror of Known Space (even though they just keep losing!).
• The Kzinrret: Female counterparts to the Kzinti, the Kzinrret were once thought nothing more than unintelligent breeding stock. However, recent events on the Ringworld have proven otherwise, and Kzinti culture may never be the same...
• The Jinxians: Heavyworlders to the Nth degree, Jinxians can crush hullmetal in their bare hands!
• The Grogs: Descendants of the terrible Slavers, all the Grogs want is a little entertainment.
• The Kdatlyno: Aliens with the heart of an artist, the hide of a dragon, and a face out of your worst nightmares.
• Pierson's Puppeteers: Chicken of the stars...
  

The Places

• The Worlds of Known Space (unfinished)
  
• Places of Note in Known Space (unfinished)
  

Sinister Faces

• Flora and Fauna of Known Space (work in progress)
  
• Technology and Equipment of Known Space
  
• NPCs of Known Space
  
• Hook, LIne, and Sinker Adventures in Known Space (work in progress)