Planetary Tool Kits are a collection of tools that you can use to build science fiction adventures, they aren’t just world write-ups but tool kits! Each includes:

• Array of useful and imagination-catching world locations
  
• Typical NPC encounters
  
• Several animals with stats
  
• A vehicle unique to the world
  
• Character ‘personalities’
  
• Encounter table
  
• List of adventure seeds tailored to the world in question

Mazandaran is most famous for its World River, a single river that cuts a channel almost the entire circumference of the planet. The river forms the heart of Mazandaran society, it is the life-blood of the economy and a single ribbon of settlement wrapping itself around the world. Society is civilised, law-abiding and peaceful. Once disparate tribes governed separate stretches of the river, but unification was followed by the institution of a sophisticated governing administration. But no-one goes to Hatrasis province. Tribal politics going back over a century fuel a modern-day insurgency there, a guerrilla conflict that the Mazandaran government is quietly attempting to put down with determined military force. Provinces on the river are links in a chain, and Hatrasis cannot opt out of the chain ... and so this easy-going government wages a brutal war that is played down and hidden from the sight of the average citizen.