The Search for Planet X

The Search for Planet X

Renegade Game Studios

  • $39.95
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Michael Pedro, James Masino, Jason D. Kingsley, Tyler Segel, John Shulters
Action Point Allowance System, Deduction
Deduction, Educational, Solo / Solitaire, Electronic
Designer Matthew O'Malley, Ben Rosset
Publisher Foxtrot Games
Players 1-4
Suggested Age 13+
Additional Info More information on BoardGameGeek

Since 2016, astronomers have been searching for a distant planet to explain the unique orbits of observable objects in the solar system.

Do you have what it takes to find Planet X?


  • Players take on the role of astronomers, participating in this real scientific investigation
  • Use the free companion app to survey for objects and take other actions
  • Use the app results and the logic rules to find objects, publish theories, and deduce where Planet X must be!
  • Created for 1-4 astronomers, ages 13+, to discover in 60-75 minutes


  • 1 Solar System Board
  • 1 Earth Board
  • 1 Wooden Sun Disc
  • 48 Theory Tokens (12 per player)
  • 4 Player Screens
  • 8 Target Tokens (2 per player)
  • 4 Player Miniatures
  • 1 Pad of Note Sheets (double-sided)
  • 4 Expert Mode Cards
  • 1 Rules Book

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